Hemisphere:  Northern  ·  Constellation: Perseus (Per)  ·  Contains:  B15  ·  B16  ·  B17  ·  B25  ·  NGC 1605  ·  NGC 1798  ·  PK158+00.1  ·  Sh2-216  ·  Sh2-217  ·  Sh2-219  ·  Sh2-221
SNR Sh2-221, PN Sh2-216 and C/2017 T2 Panstarrs, 



    
        

            xordi
Powered byPixInsight

SNR Sh2-221, PN Sh2-216 and C/2017 T2 Panstarrs

SNR Sh2-221, PN Sh2-216 and C/2017 T2 Panstarrs, 



    
        

            xordi
Powered byPixInsight

SNR Sh2-221, PN Sh2-216 and C/2017 T2 Panstarrs

Equipment

Imaging Telescopes Or Lenses
Samyang 135 f/2
Imaging Cameras
Atik One 6.0
Mounts
Skywatcher EQ8 Pro
Filters
Baader Ha 1.25" 7nm · Baader OIII 1.25" 8.5nm · Baader LRGB 1.25'' CCD Filters · Baader OIII 2" 8.5nm · Baader L 1.25" CCD Filter · Baader RGB 1.25'' CCD Filters
Software
PHD2 · EQAscom EQMOD · Incanus APT Astro Photography Tool · Adobe Phosotshop CS5 · Pixinsight 1.8 · SkytechX Planetarium
Guiding Telescopes Or Lenses
Guiderscope 53mm
Guiding Cameras
ZWO ASI120MM

Acquisition details

Dates:
Dec. 3, 2016 ·  Dec. 3, 2019 ·  Dec. 26, 2019 ·  Dec. 28, 2019 ·  Feb. 28, 2020
Frames:
Baader Ha 1.25" 7nm: 12x1800" (6h) bin 1x1
Baader Ha 1.25" 7nm: 36x900" (9h) bin 1x1
Baader L 1.25" CCD Filter: 140x70" (2h 43' 20") bin 1x1
Baader OIII 2" 8.5nm: 33x900" (8h 15') bin 1x1
Baader RGB 1.25'' CCD Filters: 120x150" (5h) bin 1x1
Integration:
30h 58' 20"
Avg. Moon age:
3.43 days
Avg. Moon phase:
16.44%

RA center: 04h50m39s.37

DEC center: +46°4502.9

Pixel scale: 7.259 arcsec/pixel

Orientation: 0.808 degrees

Field radius: 4.348 degrees

More info:Open 

Resolution: 3796x2063

Locations: Backyard, Balatonszárszó, Hungary

Data source: Backyard

Description

This is a 2 panel mosaic. The 2 main nebulas are the supernova remnant Sh2-221 (G160.4+02.8) and the planetary nebula Sh2-216 (GN 04.41.3), but there are many other objects, dark nebulas, small clusters: NGC1605, NGC1798, Sh2-216, Sh2-221, Sh2-217, Sh2-219, B15, B17, B15.

Additionally the comet C/2017 T2 Panstarrs was crossing this area, which I captured at 2019-12-03 20:50 UTC, just a few frames, and put it on the top.

The objects are mostly quite dim, especially the SNR, so I enhanced the RGB view with many hours of HaO3 layer.

Some more data:

Sh2-221

Distance: 2600 ly

Age: cca. 6600 years

https://ui.adsabs.harvard.edu/abs/2007A%26A...461.1013L/abstract

Sh2-216

Distance: 390 ly

Age: 660.000 years (!!)

https://www.g-vo.org/pmwiki/uploads/About/aa7166-07.pdf

Comments

Sky plot

Sky plot

Histogram

SNR Sh2-221, PN Sh2-216 and C/2017 T2 Panstarrs, 



    
        

            xordi