9 replies to this topic

[sternenhimmel]

It's been cloudy for a month -- haven't got a single night of imaging in. It teases during the day, with blue sky in the afternoon, but inevitably by sunset the marine layer has moved in. 
 

But luckily I have some unprocessed data to go through, and hence the name of this site. 

This is a region near the North American Nebula that I liked and collected data on in early and mid June. Mostly Ha, but I also got partial nights of OIII and SII in. One night's of OII data I had to throw away because it ended up being too windy. Would love to collect more OIII and SII data if the clouds ever clear.  

 

Here's a crop:


There's a wider view here:
https://www.astrobin.com/x9fhnf/

Which I'm only including because if you look very carefully in the bottom left, there's a tiny blue object that looks like it could be a planetary nebula (that is much easier to spot in the starless image). Surely not a new object, so am curious what the plate solve says when it's finished

Here it is cropped:

 

 

Equipment:

• William Optics GT81 / 478 IV APO
• ZWO ASI294MM
• ZWO AM5
• ZWO H-alpha 7nm 1.25" · ZWO O-III 7nm 1.25" · ZWO S-II 7nm 1.25"
• Pixinsight

Subs:

• H-alpha 7nm 1.25": 121×300″(10h 5′)
• O-III 7nm 1.25": 24×300″(2h)
• S-II 7nm 1.25": 43×300″(3h 35′)

Edited by sternenhimmel, 02 August 2024 - 02:17 AM.

[bobzeq25]

Could be a reflection artifact from the bright star.

[astropgr]

If you have time... take another Pic of the area and see if it's there when changing pointing just a bit.

[matt_astro_tx]

I just shot this area two nights ago.  If you can indicate where on the larger image this is I'd be happy to look for it and claim co-discovery!

[sternenhimmel]

The coordinates are: 21 02 38.0 +44 46 42

 

Found it by following Nick's video on what to do if you think you've found a new object here:

https://www.youtube....h?v=qaKXTnounrU

 

Here's the CDS portal result at this coordinate:

http://cdsportal.u-s... 38.0 +44 46 42

 

And the suspected PN entry:
https://simbad.u-str...entYear#lab_bib

 

Seems like it was first discovered in 2015 by an amateur french astronomer, which though a bummer for me, is pretty cool that amateurs are still discovering new objects in the sky. Also noteworthy is that I don't think I would have ever noticed it if it wasn't for the starless image I created with StarXTerminator. 

It also shows up on at least one sky survey, this is the PanSTARRS DR1 color at this location:

Maybe go scrub your images and see if you find anything interesting! 

 

 

[Peter Morrison]

Found it in my Ha image from 2010.  The bright star is HD200527.  If curious, HD200527 is near the top/left - https://www.astrobin.com/wqfzk0.

 

Peter

[Borodog]

As near as I can tell it isn't even in your Astrobin FOV.

[WadeH237]

As near as I can tell it isn't even in your Astrobin FOV.

It's there.  The bright star in question is the one nearest the upper left corner, and the nebula is very clearly present.  In fact, this might be the best image of it that I was able to find (in my few minutes of looking).

[sternenhimmel]

As near as I can tell it isn't even in your Astrobin FOV.

If you're replying to me, it's in the full view I linked -- the first photo is a crop I made as I liked the composition better.

https://www.astrobin.com/x9fhnf/

 

Also, how do you get astrobin to show more details on the plate solve overlay? Specifically the stars. Seems like it only highlighted the large nebula in mine. 

Edited by sternenhimmel, 02 August 2024 - 01:20 PM.

[Peter Morrison]

Open the "Advanced plate solving settings" under the "Edit" menu.  You can either change the "Max. magnitude" or blank it out so it uses the catalog's default value.

 

Peter