This is the next image captured last weekend. I recorded 114 individual exposures of 120s, from which I could use 43 due to clouds crossing in the night. I annotated the image with the galaxies visible. Among them are: M86 (mag 8.8) NGC 4438 (mag 10.0) NGC 4388 (mag 10.9) NGC 4440 (mag 11.8) NGC 4402 (mag 11.9) and the faintest ones visible are IC 3386 (mag 16.0) IC 3349 (mag 17.7) IC 3363 (mag 17.7) PGC 40723 (mag 17.7)
Image data: Date: 2021-02-11 Location: Graz, Austria Telescope: 102mm f/7 APO with 0.79x flattener (equals to 564mm focal length) Camera: QHY183C @ -30C Filters: Baader UV-IR Cut + IDAS LPS-D2 Guiding: MGEN-II with off-axis guider Exposures: 43x100s RGB
During the last few days there were really promising clear nights. I recorded several data sets from my urban location (under these conditions, going up the mountains would have been a treat!). Now, as there are clouds again, I am processing the captured data. Here is the first result from the Leo Triplet (M65, M66 and NGC 3628). I still have not yet received my color filters. So here I have a combination of luminance (UV-IR-Cut), H-alpha and O-iii data.
Image data: Date: 2021-02-12 – 2021-02-14 Location: Graz, Austria Telescope: 102mm f/7 APO with 0.79x flattener (equals to 564mm focal length) Camera: QHY183M @ -30C Filters: Baader UV-IR Cut + IDAS LPS-D2, narrow band Ha, Oiii Guiding: MGEN-II with off-axis guider Exposures: 41x100s Luminance, 20x300s O-iii (2x binning), 30x300s H-alpha (2x binning) Sky-Quality: 19.4-19.6 mpss
Even though the dark night in June is quite short, I could capture these images of Makarian Chain around M86 in Virgo and the Iris Nebula. Images captured near Sommeralm, 30km north-east of Graz. Night sky still suffers from light pollution. The milky way was visible, but not crisp and clear.
Last night I spent near my home town – a short 25 minutes drive – to a place I frequently used years back for astronomy. It is a quite dark spot, though the light pollution is still obvious. Nevertheless I tried to go for some deep sky objects, getting as much observation / camera time as possible in the short nights of June.
My list of objects was not too short. All of them were well placed in the sky and really nice to see :-). So here you go: 1) Hercules cluster M13 (Sony A99ii, 800mm f4, 2xTC, 27x120s, ISO3200) 2) Virgo galaxies M60, M87, M90, M100 (Sony A6000mod, 70-200mmf2.8 @ 200mm f4.5, 22x300s, ISO3200) 3) Virgo galaxy M90 – though I intended M87 😉 4) Whirlpool galaxy M51 (Sony A99ii, 800mm f4, 2xTC, 6x360s, ISO3200) 5) Andromeda galaxy M31 (Sony A6000mod, 70-200mm f2.8 @ 200mm f4.5, 5x30s, ISO3200) – I made an error in exposure time, so instead of 5×300 I ended up with 5x30s 🙁 6) Jupiter (I did not pack my planetary imaging camera – so I used the same setup with Sony A99ii and 800mm scope at 1600mm) 7) Saturn (same as Jupiter)
And far too late (at 01:30) I set up my timelapse camera for a night-to-day movie. The milkyway was beautifully placed just above the pasture. The resulting video clip is below.
After the completely washed away telescope meeting in the beginning of May, I tried to meet up with a few enthusiasts with quite promising weather prospects. Unfortunately the cloud cover did not vanish all the way. Even though there was quite a lot of clouds passing over, I could manage to snap some light frames from M51 – the Whirlpool Galaxy.
It was fun chatting and also delicious being hosted with creole food 🙂 which compensates for almost any cloudy night!
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