Jupiter Imaging Sessions from Starlight Cascade Gardens & Observatories
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Located near the Hamlet of Yarker, Township of Stone Mills, County of Lennox and Addington, Province of Ontario, Canada
For Jupiter GRS transit times: https://skyandtelescope.org/observing/interactive-sky-watching-tools/transit-times-of-jupiters-great-red-spot/

Date Page Last Generated / Number of sessions / Number of Images: Sat 23 Sep 2023 10:39:04 AM EDT 9 9
2020-09-21-0047_0-kk-l-jupiter_exposure=66ms_zwoasi290mc_pipp_lapl4_ap27_drizzle15wk9.png-annotated.png.jpg 2020-09-19-0018_1-kk-l-jupiter_exposure=66ms_zwoasi290mc_pipp_lapl4_ap28_drizzle15wk9.png-annotated.png.jpg 2020-09-12-0048_1-kk-l-jupiter_exposure66ms_zwoasi290mc_pipp_lapl4_ap27_drizzle15wk9-1-annotated-1.png.jpg 2020-09-06-0122_4-kk-l-jupiter_exposure86ms_zwoasi290mc_pipp_lapl4_ap29_drizzle15wk9-annotated.png.jpg 2020-08-16-0139_0-kk-L-Jup_Exposure86ms_ZWOASI290MC_pipp_lapl4_ap36_Drizzle15wk9gimp.png.jpg 2020-08-15-0256_8-kk-L-Jup_Exposure100ms_ZWOASI290MC_pipp_lapl4_ap38_Drizzle15wk9.png.jpg 2020-08-13-0151_4-kk-L-Jup_Exposure100ms_ZWOASI290MC_pipp_lapl4_ap26_Drizzle15wk9.png.jpg 2020-07-21-0444_1-kk-L-Jup_Exposure17ms_ZWOASI290MC_pipp_lapl4_ap22_Drizzle15w.png.jpg 2020-07-18-0237_1-kk-L-Jup_Exposure21ms_ZWOASI290MC_pipp_lapl4_ap19_Drizzle15w.png.jpg




2020-09-21-0047_0-kk-l-jupiter_exposure=66ms_zwoasi290mc_pipp_lapl4_ap27_drizzle15wk9.png-annotated.png.jpg




2020-09-19-0018_1-kk-l-jupiter_exposure=66ms_zwoasi290mc_pipp_lapl4_ap28_drizzle15wk9.png-annotated.png.jpg




2020-09-12-0048_1-kk-l-jupiter_exposure66ms_zwoasi290mc_pipp_lapl4_ap27_drizzle15wk9-1-annotated-1.png.jpg




2020-09-06-0122_4-kk-l-jupiter_exposure86ms_zwoasi290mc_pipp_lapl4_ap29_drizzle15wk9-annotated.png.jpg




2020-08-16-0139_0-kk-L-Jup_Exposure86ms_ZWOASI290MC_pipp_lapl4_ap36_Drizzle15wk9gimp.png.jpg

Greetings! Saturday night was imaging Jupiter with: a) cleaned optics (camera window, barlow) b) removed 90 deg adapter (gaining 10-20% in exposure times due to one less 80-90% reflective surface) AND one less Y-axis flip! c) the x2.5 barlow (previous attempts have been x1.5 and x2 The Hartmann mask was used to focus on Vega, then moved to Jupiter for imaging. Images runs were 120 second and exposure times were better than the 100ms the past few days, down to 90 and even 86ms. These are the best 20% of the 1395 frames taken. I've attempted to add the GIMP to the image workflow: black point, filter enhance highpass, filter enhance despeckle and colour saturation, but I can't say any of these worked for me at all. MS Photos, edit, adjustments, clarity does add some value . No transits or shadows that evening. GreatRedSpot was just leaving.




2020-08-15-0256_8-kk-L-Jup_Exposure100ms_ZWOASI290MC_pipp_lapl4_ap38_Drizzle15wk9.png.jpg

Jupiter satellite events from project pluto I = IO II = EUROPA III = GANYMEDE UTC-4 hours=EDT II : Tra start: 14 Aug 2020 11:36 II : Sha start: 14 Aug 2020 13:03 II : Tra end : 14 Aug 2020 14:23 II : Sha end : 14 Aug 2020 15:52 III: Tra start: 14 Aug 2020 23:30 22:30 EDT III: Sha start: 15 Aug 2020 2:30 III: Tra end : 15 Aug 2020 2:51 I : Tra start: 15 Aug 2020 3:23 00:08 EDT I : Sha start: 15 Aug 2020 4:08 I : Tra end : 15 Aug 2020 5:40 III: Sha end : 15 Aug 2020 5:54 01:54 EDT This is an image (02:56UTC) of the shadow of the moon Ganymede (top left) and you can barely make out the moon itself leaving transit on the limb (right a little above middle). I successfully used the two holer (hartman mask). I focused by eye first on arcturus then used the mask and did see two distinct images, adjusted the focus until it was a good as possible, then removed the mask and slewed to Jupiter. After 20 minutes I found Jupiter! I had tried using the mask on Jupiter but as a nonpoint source, it did not work at all. Tracking was problematic and I had to manually guide the exposures. Just after 23:00 EDT I thought the focus was a little off, so tried the hartman mask again, lost jupiter completely, and decided to pack it in for the night. So I did NOT get the double shadow transit... maybe next time! Of the 18 imaging runs I did, maybe 3 or 4 were useful... the rest had a dust ring in the FieldOfView at some point and processing turned it into what you see in the (0246UTC) 2nd attached image ! :) I did not have such a bad success rate with the x1.5 barlow so am suspecting it may be in the x2 barlow that I used. Time to try out the x2.5 next time!




2020-08-13-0151_4-kk-L-Jup_Exposure100ms_ZWOASI290MC_pipp_lapl4_ap26_Drizzle15wk9.png.jpg

Another night of developing imaging workflow for the Meade 102mm SC. Tonight was with a x2 barlow, taking it from FL=1000mm to 2000mm. Much software, lower contrast, harder to focus, slower exposure times. This is the last or 2nd last image of the night, before I switched over to Saturn. Jupiter was 21 deg alt, with a diameter of 46 arcsec. The Great Red Spot was appearing... I did not see that at all in the raw imaging. North is up. I hope tonight will see a noticeable improvement in the initial focus... that helps all the way down the processing/ workflow chain. Current workflow: Firecapture capture SER video, PIPP centre and crop, Autostakkert3! stacking and drizzle, Registax wavelets.




2020-07-21-0444_1-kk-L-Jup_Exposure17ms_ZWOASI290MC_pipp_lapl4_ap22_Drizzle15w.png.jpg




2020-07-18-0237_1-kk-L-Jup_Exposure21ms_ZWOASI290MC_pipp_lapl4_ap19_Drizzle15w.png.jpg

I have been looking forward to the opposition of Jupiter for *ages*. Unfortunately I do not yet have my dream setup and am cobbling together anything that will capture photons. Last night was 1st light with an old Meade LXD55 tripod and mount, an old Meade 102mm F10 1000mm FL, a newer asi 290mc camera. I do not have the cables to talk to the mount yet (its a serial 4 wire cable with a narrow RJ9 jack, not the "regular RJ11" standard phone style jack). It would have been nice to be able to command the mount from inside the house as the mozzies were insane last night. We were decked out in bug jackets along with long clothing and still they were biting through. Attached is the processed (pipp, autostakkert!, registax wavelets) image of Jupiter at 02:37 UTC today (22:37 EDT) that shows not too abd detail using Christopher Go's wavelet settings.. a little overblown but it does show the surface features well. For comparison, also attached is the stacked but not yet processed in registax for wavelets.


Telescopes Used (left-right oldest-newest)

10cm Meade SC FL=1000mm - RA tracking only

20cm Skywatcher Dobsonian FL=1200mm - alt-az drift scan

20cm Meade LX200 FL=2000mm alt az tracking

102mm Meade SC FL=1000mm - Meade LXD55 tracking

20cm Vixen VC200L FL=1800mm Skywatcher AZ-EQ6GT tracking

Cameras used (newest-oldest):

  • The ZWO ASI585MC (2023 May)
  • The ZWO ASI290MC camera (2018 December) Sensor: 1/2.8" CMOS IMX291 12bit output (12bit ADC) Resolution: 2.1 Mega Pixels 1936x1096 Pixel Size: 2.9 um Exposure Range: 32us-2000s
  • The ZWO ASI20MC camera (2014 September) Sensor: 1/3" CMOS AR0130CS(Color) Resolution: 1.2Mega Pixels 1280x960 Pixel Size: 3.75 um Exposure Range: 64us-1000s