SkyCalPro | Kev
@skycalpro.com
🔭I loved CalSky🛰️the app to that tells you what you will see if you look up at the sky tonight. 🪐 I waited for someone to recreate it after it went offline but no-one did so I created it myself...💫
https://skycalpro.com
https://skycalpro.com
Pinned
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
Leonids Meteor Shower
(Class I) meteor shower in Leo constellation, Peak rate (ZHR) of 3-10 per hour traveling at a velocity of 70km/sec from parent object 55P/Tempel-Tuttle, peak status: 3 days to peak
skycalpro.com
#Leonids
(Class I) meteor shower in Leo constellation, Peak rate (ZHR) of 3-10 per hour traveling at a velocity of 70km/sec from parent object 55P/Tempel-Tuttle, peak status: 3 days to peak
skycalpro.com
#Leonids
Reposted by SkyCalPro | Kev
SkyCalPro 2.2.0 out now:
-Jupiter GRS position & drift rate now reliably updated monthly
-Full ref dates, drift, current longitude & observation window in output
-Sun/Moon diameter now shows on ISS transits
#AstroMethods #Jupiter
skycalpro.com
-Jupiter GRS position & drift rate now reliably updated monthly
-Full ref dates, drift, current longitude & observation window in output
-Sun/Moon diameter now shows on ISS transits
#AstroMethods #Jupiter
skycalpro.com
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
November 14, 2025 at 7:05 AM
SkyCalPro 2.2.0 out now:
-Jupiter GRS position & drift rate now reliably updated monthly
-Full ref dates, drift, current longitude & observation window in output
-Sun/Moon diameter now shows on ISS transits
#AstroMethods #Jupiter
skycalpro.com
-Jupiter GRS position & drift rate now reliably updated monthly
-Full ref dates, drift, current longitude & observation window in output
-Sun/Moon diameter now shows on ISS transits
#AstroMethods #Jupiter
skycalpro.com
Reposted by SkyCalPro | Kev
This year’s Grand Marshall for the University of Alabama’s homecoming parade orbited the Earth for 170 days. I interviewed NASA astronaut, and UA grad, Bob Hines on Alabama Public Radio about his mission aboard the International Space Station.
www.apr.org/2023-11-17/a...
www.apr.org/2023-11-17/a...
November 14, 2025 at 8:33 PM
This year’s Grand Marshall for the University of Alabama’s homecoming parade orbited the Earth for 170 days. I interviewed NASA astronaut, and UA grad, Bob Hines on Alabama Public Radio about his mission aboard the International Space Station.
www.apr.org/2023-11-17/a...
www.apr.org/2023-11-17/a...
Leonids Meteor Shower
(Class I) meteor shower in Leo constellation, Peak rate (ZHR) of 3-10 per hour traveling at a velocity of 70km/sec from parent object 55P/Tempel-Tuttle, peak status: 3 days to peak
skycalpro.com
#Leonids
(Class I) meteor shower in Leo constellation, Peak rate (ZHR) of 3-10 per hour traveling at a velocity of 70km/sec from parent object 55P/Tempel-Tuttle, peak status: 3 days to peak
skycalpro.com
#Leonids
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
November 14, 2025 at 8:22 AM
Leonids Meteor Shower
(Class I) meteor shower in Leo constellation, Peak rate (ZHR) of 3-10 per hour traveling at a velocity of 70km/sec from parent object 55P/Tempel-Tuttle, peak status: 3 days to peak
skycalpro.com
#Leonids
(Class I) meteor shower in Leo constellation, Peak rate (ZHR) of 3-10 per hour traveling at a velocity of 70km/sec from parent object 55P/Tempel-Tuttle, peak status: 3 days to peak
skycalpro.com
#Leonids
SkyCalPro 2.2.0 out now:
-Jupiter GRS position & drift rate now reliably updated monthly
-Full ref dates, drift, current longitude & observation window in output
-Sun/Moon diameter now shows on ISS transits
#AstroMethods #Jupiter
skycalpro.com
-Jupiter GRS position & drift rate now reliably updated monthly
-Full ref dates, drift, current longitude & observation window in output
-Sun/Moon diameter now shows on ISS transits
#AstroMethods #Jupiter
skycalpro.com
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
November 14, 2025 at 7:05 AM
SkyCalPro 2.2.0 out now:
-Jupiter GRS position & drift rate now reliably updated monthly
-Full ref dates, drift, current longitude & observation window in output
-Sun/Moon diameter now shows on ISS transits
#AstroMethods #Jupiter
skycalpro.com
-Jupiter GRS position & drift rate now reliably updated monthly
-Full ref dates, drift, current longitude & observation window in output
-Sun/Moon diameter now shows on ISS transits
#AstroMethods #Jupiter
skycalpro.com
Voyager 1 reveals Io erupting — 9 active volcanoes, 300 km plumes, lava lakes. Io was the first body beyond Earth seen with live volcanism. Linda Morabito spots the plume in a nav image.
Image: Loki plume, NASA/JPL
#AstroHistory #Jupiter
Image: Loki plume, NASA/JPL
#AstroHistory #Jupiter
November 14, 2025 at 6:59 AM
Voyager 1 reveals Io erupting — 9 active volcanoes, 300 km plumes, lava lakes. Io was the first body beyond Earth seen with live volcanism. Linda Morabito spots the plume in a nav image.
Image: Loki plume, NASA/JPL
#AstroHistory #Jupiter
Image: Loki plume, NASA/JPL
#AstroHistory #Jupiter
In 1979 Voyager 1 passed Jupiter at 280,000 km to image the planet & moons in high-res. It mapped radiation, disovered lightning. Delivered 18,000 photos: GRS close-up, Io volcanoes, Europa’s cracks. before flying on to Saturn
image credit: NASA
image credit: NASA
November 14, 2025 at 6:57 AM
In 1979 Voyager 1 passed Jupiter at 280,000 km to image the planet & moons in high-res. It mapped radiation, disovered lightning. Delivered 18,000 photos: GRS close-up, Io volcanoes, Europa’s cracks. before flying on to Saturn
image credit: NASA
image credit: NASA
Reposted by SkyCalPro | Kev
Pioneer launched as low-cost pathfinders to test the asteroid belt & Jupiter’s radiation before the Voyager “Grand Tour” missions. On board: magnetometer, plasma analyser, cosmic-ray telescope, UV/IR photometers, trapped-radiation detector,Imaging Photopolarimeter.
#AstroHistory
#AstroHistory
November 13, 2025 at 7:46 AM
Pioneer launched as low-cost pathfinders to test the asteroid belt & Jupiter’s radiation before the Voyager “Grand Tour” missions. On board: magnetometer, plasma analyser, cosmic-ray telescope, UV/IR photometers, trapped-radiation detector,Imaging Photopolarimeter.
#AstroHistory
#AstroHistory
Reposted by SkyCalPro | Kev
1973-74: Pioneer 10 & 11 deliver the first close-up colour views of Jupiter. The probes had no true camera, just a spinning Imaging Photopolarimeter scanning through red and blue filters.
Images:
Pioneer 10 montage, Dec 1973
Pioneer 11 full-disk from 760,000 km, Dec 1974
#AstroHistory #Jupiter
Images:
Pioneer 10 montage, Dec 1973
Pioneer 11 full-disk from 760,000 km, Dec 1974
#AstroHistory #Jupiter
November 13, 2025 at 6:49 AM
1973-74: Pioneer 10 & 11 deliver the first close-up colour views of Jupiter. The probes had no true camera, just a spinning Imaging Photopolarimeter scanning through red and blue filters.
Images:
Pioneer 10 montage, Dec 1973
Pioneer 11 full-disk from 760,000 km, Dec 1974
#AstroHistory #Jupiter
Images:
Pioneer 10 montage, Dec 1973
Pioneer 11 full-disk from 760,000 km, Dec 1974
#AstroHistory #Jupiter
Reposted by SkyCalPro | Kev
Not to mention the first images of the Galilean moons as something other than dots.
November 13, 2025 at 8:06 AM
Not to mention the first images of the Galilean moons as something other than dots.
Pioneer launched as low-cost pathfinders to test the asteroid belt & Jupiter’s radiation before the Voyager “Grand Tour” missions. On board: magnetometer, plasma analyser, cosmic-ray telescope, UV/IR photometers, trapped-radiation detector,Imaging Photopolarimeter.
#AstroHistory
#AstroHistory
November 13, 2025 at 7:46 AM
Pioneer launched as low-cost pathfinders to test the asteroid belt & Jupiter’s radiation before the Voyager “Grand Tour” missions. On board: magnetometer, plasma analyser, cosmic-ray telescope, UV/IR photometers, trapped-radiation detector,Imaging Photopolarimeter.
#AstroHistory
#AstroHistory
1973-74: Pioneer 10 & 11 deliver the first close-up colour views of Jupiter. The probes had no true camera, just a spinning Imaging Photopolarimeter scanning through red and blue filters.
Images:
Pioneer 10 montage, Dec 1973
Pioneer 11 full-disk from 760,000 km, Dec 1974
#AstroHistory #Jupiter
Images:
Pioneer 10 montage, Dec 1973
Pioneer 11 full-disk from 760,000 km, Dec 1974
#AstroHistory #Jupiter
November 13, 2025 at 6:49 AM
1973-74: Pioneer 10 & 11 deliver the first close-up colour views of Jupiter. The probes had no true camera, just a spinning Imaging Photopolarimeter scanning through red and blue filters.
Images:
Pioneer 10 montage, Dec 1973
Pioneer 11 full-disk from 760,000 km, Dec 1974
#AstroHistory #Jupiter
Images:
Pioneer 10 montage, Dec 1973
Pioneer 11 full-disk from 760,000 km, Dec 1974
#AstroHistory #Jupiter
Friday I plan to release an update to skycalpro. This release is the Jupiter Great Red Spot update
skycalpro.com
skycalpro.com
SkyCalPro - Calculate your own Sky Calendar
Rocket Launches-Planets-Satellites-Meteor Showers-Sun and Moon...and more!
skycalpro.com
November 12, 2025 at 8:08 PM
Friday I plan to release an update to skycalpro. This release is the Jupiter Great Red Spot update
skycalpro.com
skycalpro.com
Reposted by SkyCalPro | Kev
In 1892 E.E. Barnard discovered Jupiter's 5th moon, Amalthea, the last moon found by eye through a telescope. Over the next 80 years photos were B&W, and improved only a little over the period.
1891 Lick Obs-36" refractor, E.E. Barnard
1950 Mt Palomar-200" reflector, M.L. Humason
#AstroHistory
1891 Lick Obs-36" refractor, E.E. Barnard
1950 Mt Palomar-200" reflector, M.L. Humason
#AstroHistory
November 12, 2025 at 7:19 AM
In 1892 E.E. Barnard discovered Jupiter's 5th moon, Amalthea, the last moon found by eye through a telescope. Over the next 80 years photos were B&W, and improved only a little over the period.
1891 Lick Obs-36" refractor, E.E. Barnard
1950 Mt Palomar-200" reflector, M.L. Humason
#AstroHistory
1891 Lick Obs-36" refractor, E.E. Barnard
1950 Mt Palomar-200" reflector, M.L. Humason
#AstroHistory
Reposted by SkyCalPro | Kev
Sky at Night always used to have an early repeat - and we're back, with our collaboration with the Curious Cases team on at 7pm tomorrow on BBC4. Please watch if you possibly can - support your local science program! www.bbc.co.uk/programmes/m...
BBC Four - The Sky at Night, Space Mysteries: The Sky at Night Meets Curious Cases
Hannah Fry and Dara Ó Briain join the team to answer viewers' burning queries about space.
www.bbc.co.uk
November 12, 2025 at 10:44 AM
Sky at Night always used to have an early repeat - and we're back, with our collaboration with the Curious Cases team on at 7pm tomorrow on BBC4. Please watch if you possibly can - support your local science program! www.bbc.co.uk/programmes/m...
In 1892 E.E. Barnard discovered Jupiter's 5th moon, Amalthea, the last moon found by eye through a telescope. Over the next 80 years photos were B&W, and improved only a little over the period.
1891 Lick Obs-36" refractor, E.E. Barnard
1950 Mt Palomar-200" reflector, M.L. Humason
#AstroHistory
1891 Lick Obs-36" refractor, E.E. Barnard
1950 Mt Palomar-200" reflector, M.L. Humason
#AstroHistory
November 12, 2025 at 7:19 AM
In 1892 E.E. Barnard discovered Jupiter's 5th moon, Amalthea, the last moon found by eye through a telescope. Over the next 80 years photos were B&W, and improved only a little over the period.
1891 Lick Obs-36" refractor, E.E. Barnard
1950 Mt Palomar-200" reflector, M.L. Humason
#AstroHistory
1891 Lick Obs-36" refractor, E.E. Barnard
1950 Mt Palomar-200" reflector, M.L. Humason
#AstroHistory
Reposted by SkyCalPro | Kev
#GoodMorningEveryone and enjoy the Waning Gibbous phase #moonphase of our satellite, the Moon, as it crosses the Leo constellation, 379,000 km above us. Yes, all of us, no matter where we live on this planet.
The sky above us is for all of us, free-of-charge, and unlimited. 😉
The sky above us is for all of us, free-of-charge, and unlimited. 😉
November 12, 2025 at 6:48 AM
#GoodMorningEveryone and enjoy the Waning Gibbous phase #moonphase of our satellite, the Moon, as it crosses the Leo constellation, 379,000 km above us. Yes, all of us, no matter where we live on this planet.
The sky above us is for all of us, free-of-charge, and unlimited. 😉
The sky above us is for all of us, free-of-charge, and unlimited. 😉
Reposted by SkyCalPro | Kev
Since I recently retired, I can gleefully work all day figuring and testing my 62 cm (24 inch) cellular primary mirror. Having produced a good spheroidal figure, it's finally ready to parabolize. Amazingly, this is Norway's largest optical telescope. 🔭
August 2, 2025 at 6:34 PM
Since I recently retired, I can gleefully work all day figuring and testing my 62 cm (24 inch) cellular primary mirror. Having produced a good spheroidal figure, it's finally ready to parabolize. Amazingly, this is Norway's largest optical telescope. 🔭
Been a poor show with my photography recently. I didn't enter the last club PDI competition (I run them so that's bad form!). I hardly used my camera last year. But I did take some pics in London recently. My Open Colour PDI entries: 'Tulip Staircase' and 'Salmon & Lime'
November 11, 2025 at 8:23 PM
Been a poor show with my photography recently. I didn't enter the last club PDI competition (I run them so that's bad form!). I hardly used my camera last year. But I did take some pics in London recently. My Open Colour PDI entries: 'Tulip Staircase' and 'Salmon & Lime'
Reposted by SkyCalPro | Kev
Oh well, it's only takes years of trial and error studying various techniques and inhuman quantities of patience. Here's 2000 hours compressed to 30 seconds. 24 inch (62 cm) diameter f/3.4 paraboloid primary mirror.
November 11, 2025 at 12:58 PM
Oh well, it's only takes years of trial and error studying various techniques and inhuman quantities of patience. Here's 2000 hours compressed to 30 seconds. 24 inch (62 cm) diameter f/3.4 paraboloid primary mirror.
Reposted by SkyCalPro | Kev
While Andrew Ainslie Common was pioneering Jupiter photography, French artist-astronomer Étienne Léopold Trouvelot captured what he saw through Harvard’s 15-inch Merz refractor.
Drawn Nov 1 1880 (9:30 PM); published 1881 in The Trouvelot Astronomical Drawings. #AstroHistory #Jupiter
Drawn Nov 1 1880 (9:30 PM); published 1881 in The Trouvelot Astronomical Drawings. #AstroHistory #Jupiter
November 11, 2025 at 8:07 AM
While Andrew Ainslie Common was pioneering Jupiter photography, French artist-astronomer Étienne Léopold Trouvelot captured what he saw through Harvard’s 15-inch Merz refractor.
Drawn Nov 1 1880 (9:30 PM); published 1881 in The Trouvelot Astronomical Drawings. #AstroHistory #Jupiter
Drawn Nov 1 1880 (9:30 PM); published 1881 in The Trouvelot Astronomical Drawings. #AstroHistory #Jupiter
After a lot of faffing this week, early this morning, I managed to stage the changes to the GRS calculation on SkyCalPro. That's a big step.
When i get time this week I'll mock it up in production and see if it goes up there too. Hopefully ready publicly in the next couple of days
#AstroMethods
When i get time this week I'll mock it up in production and see if it goes up there too. Hopefully ready publicly in the next couple of days
#AstroMethods
November 11, 2025 at 12:53 PM
After a lot of faffing this week, early this morning, I managed to stage the changes to the GRS calculation on SkyCalPro. That's a big step.
When i get time this week I'll mock it up in production and see if it goes up there too. Hopefully ready publicly in the next couple of days
#AstroMethods
When i get time this week I'll mock it up in production and see if it goes up there too. Hopefully ready publicly in the next couple of days
#AstroMethods
Thanks everyone for all your likes, follows comments and questions this week. Particularly on my history of Jupiter series! You are awesome!
a splash of gold says thank you on a dark blue background
ALT: a splash of gold says thank you on a dark blue background
media.tenor.com
November 11, 2025 at 8:43 AM
Thanks everyone for all your likes, follows comments and questions this week. Particularly on my history of Jupiter series! You are awesome!
While Andrew Ainslie Common was pioneering Jupiter photography, French artist-astronomer Étienne Léopold Trouvelot captured what he saw through Harvard’s 15-inch Merz refractor.
Drawn Nov 1 1880 (9:30 PM); published 1881 in The Trouvelot Astronomical Drawings. #AstroHistory #Jupiter
Drawn Nov 1 1880 (9:30 PM); published 1881 in The Trouvelot Astronomical Drawings. #AstroHistory #Jupiter
November 11, 2025 at 8:07 AM
While Andrew Ainslie Common was pioneering Jupiter photography, French artist-astronomer Étienne Léopold Trouvelot captured what he saw through Harvard’s 15-inch Merz refractor.
Drawn Nov 1 1880 (9:30 PM); published 1881 in The Trouvelot Astronomical Drawings. #AstroHistory #Jupiter
Drawn Nov 1 1880 (9:30 PM); published 1881 in The Trouvelot Astronomical Drawings. #AstroHistory #Jupiter
The first surviving successful image of Jupiter was taken in 1879 by Andrew Ainslie Common in Ealing, London, using his 36-inch Newtonian reflector and the wet collodion process invented in 1851 by portrait photographer Frederick Scott Archer
November 10, 2025 at 8:24 AM
The first surviving successful image of Jupiter was taken in 1879 by Andrew Ainslie Common in Ealing, London, using his 36-inch Newtonian reflector and the wet collodion process invented in 1851 by portrait photographer Frederick Scott Archer
Reposted by SkyCalPro | Kev
I’m going to have an educated guess at the moon image:
I think we’re looking at a half moon (white circle with terminator black line), exposed that the earthshine is showing on the right. The purple circle is the scope aperture. The bubbles artefacts of the development process. What do you think?
I think we’re looking at a half moon (white circle with terminator black line), exposed that the earthshine is showing on the right. The purple circle is the scope aperture. The bubbles artefacts of the development process. What do you think?
November 9, 2025 at 1:48 PM
I’m going to have an educated guess at the moon image:
I think we’re looking at a half moon (white circle with terminator black line), exposed that the earthshine is showing on the right. The purple circle is the scope aperture. The bubbles artefacts of the development process. What do you think?
I think we’re looking at a half moon (white circle with terminator black line), exposed that the earthshine is showing on the right. The purple circle is the scope aperture. The bubbles artefacts of the development process. What do you think?