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This spectrum (taken using the C11 and ALPY600 spectrograph) is of magnitude 15 star IRAS 00500+6713 in Cassiopeia. It is believed to be the result of a merger between two white dwarfs, kept from complete collapse by a powerful magnetic field and may be the stellar remnant of the supernova seen by Chinese astronomers in 1181. It is a star of extremes with a temperature of 200,000 K and 16,000 km/s winds. More about this star and references on my BAA page here
Noobie here, I just purchased the Celestron 80mm travel scope for my first telescope and saw this and I want to see if anyone can tell me what this is. My first thought was that this is a supernova, but I highly doubt that. I’m located in NorCal and was pointing my telescope somewhere between Jupiter and Saturn. I had a 10mm eyepiece and cant remember if I had a 2x Barlow lens on or not, and took this video through my iPhone with the phone attachment. There is lots of light pollution around me and I couldn’t see this with my naked eye, only through the telescope. If anyone can please tell me what this might be I’d love to know!
Three new bright supernovae to look out for (IC3322A/SN2021hiz & NGC3310/SN2021gmj & NGC5018/SN2021fxy)By alanjgreen
I was out hunting the latest supernovae on 1st April and observed the following SN's
- SN2021hiz in IC3322A (discovered 30th March and now at mag 14.9)
Checking the latest images this morning, I see that the dot out on the tip (in my sketch) was the new SN.
- SN2021gmj in NGC3310 (discovered 20th March and now at mag 15.6)
This is a nice SN sitting on the end of a faint spiral arm.
Both have not reached their peak brightness yet so should still get brighter.
There is another bright SN but its too low for me to get at from my obsy shed
It is SN2021fxy found in NGC5018, current brightness is mag 14.2
Have a look with these lovely clear skies that we have at the moment...
Here are my SN targets for next week (weather permitting)...
1.NGC 3643, SN2020hvf, Mag 12.4 (observed on 27th April & 8th May)
2.M61, SN2020jfo, Mag 14.5 (observed on 8th May)
3.NGC 6118, SN2020hvp, Mag 14.6
4.UGC 10561, SN2020hvq, Mag 15.9
5.PGC 056685, SN2020fhs, Mag 16.1
(Remember to rotate the finder charts 180 degrees to match the view to a dob)
With clear nights forecast next week and the moon getting later to rise 😀, I have done some SN research this morning to id some targets for next week...
Here are some scans of my research notes and star charts for use next week...
I will be targeting the following new SN:
AT2020ftl, NGC4277, Mag 14.9 SN2020dko, NGC5258, Mag 16.6 AT2020enm, IC1222, Mag 16.7 SN2020fqv, NGC4568 (Siamese Twins), Mag 15.3 SN2020fcw, NGC5635, Mag 16.1 SN2020ees, NGC5157, Mag 16.5