Hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  Sh2-243  ·  VdB47
Getting plate-solving status, please wait...
VdB 47 (SH2-243?), 



    
        

            KuriousGeorge
Powered byPixInsight

VdB 47 (SH2-243?)

Getting plate-solving status, please wait...
VdB 47 (SH2-243?), 



    
        

            KuriousGeorge
Powered byPixInsight

VdB 47 (SH2-243?)

Acquisition details

Dates:
Dec. 15, 2020 ·  Dec. 16, 2020 ·  Jan. 7, 2021 ·  Jan. 8, 2021
Frames:
Astrodon 50 mm G: 8×900(2h) (gain: 0.00) -10°C bin 1×1
Astrodon 50mm B: 8×900(2h) (gain: 0.00) -10°C bin 1×1
Astrodon 50mm L: 28×900(7h) (gain: 0.00) -10°C bin 1×1
Astrodon 50mm R: 12×900(3h) (gain: 0.00) -10°C bin 1×1
Integration:
14h
Darks:
20
Flats:
80
Flat darks:
80
Bias:
20
Avg. Moon age:
12.66 days
Avg. Moon phase:
17.50%
Mean SQM:
21.20
Mean FWHM:
2.10

RA center: 05h39m21s.778

DEC center: +23°1726.11

Pixel scale: 0.196 arcsec/pixel

Orientation: 0.642 degrees

Field radius: 0.307 degrees

More info:Open 

Resolution: 9356x6342

File size: 9.3 MB

Locations: KG Observatory, Julian, CA, United States

Data source: Backyard

Description

I started collecting color for this faint reflection nebula during a few December nights of decent seeing. I was then lucky to see some clearings during January for the Luminance.

"VdB 47 is a reflection nebula associated with a visible emission in the constellation Taurus.

It is a cloud of gas that surrounds the star HD 37387, an orange supergiant of spectral class K1Ib placed at a distance of 6500 light-years, at the inner edge of the Perseus Arm.

The nebula presents a markedly orange color due to the radiation of this star and has an effective temperature of 4500 Kelvin. The cloud may be associated with star-forming region which also includes the maser DG 68 and the source IRAS 05363 + 2317, along with some radio wave sources.

Some astronomers identify VdB 47 with Sh2-243. In fact, the given coordinates in the Sharpless catalogue place SH2-243 almost at the same place. From Galaxymap: "there is no visible nebulosity on this image, no known ionising stars in this direction, nor has anything been detected at radio frequencies. It is not clear whether this object actually exists".

The same applies more or less to LBN 830. But some further research suggests, that probably VdB 47 = SH2-243 = LBN 830."

Comments

Sky plot

Sky plot

Histogram

VdB 47 (SH2-243?), 



    
        

            KuriousGeorge