Celestial hemisphere:  Northern  ·  Constellation: Cepheus (Cep)  ·  Contains:  HD224446  ·  HD56  ·  LBN 598  ·  PK120+18.1  ·  Sh2-174
Getting plate-solving status, please wait...
SH2-174 : Valentine Rose Nebula, 



    
        

            Thomas LELU
Powered byPixInsight

SH2-174 : Valentine Rose Nebula

Getting plate-solving status, please wait...
SH2-174 : Valentine Rose Nebula, 



    
        

            Thomas LELU
Powered byPixInsight

SH2-174 : Valentine Rose Nebula

Acquisition details

Dates:
March 5, 2022 ·  March 6, 2022 ·  March 7, 2022 ·  March 8, 2022 ·  March 9, 2022 ·  March 10, 2022 ·  March 22, 2022 ·  March 23, 2022 ·  March 24, 2022 ·  March 25, 2022 ·  March 26, 2022 ·  March 27, 2022 ·  April 20, 2022 ·  April 21, 2022
Frames:
IDAS LPS-P3 2": 205×600(34h 10′) (gain: 145.00) -10°C bin 1×1
IDAS Nebula Booster NBZ 2": 285×900(71h 15′) (gain: 145.00) -10°C bin 1×1
Integration:
105h 25′
Darks:
21
Flats:
30
Bias:
100
Avg. Moon age:
14.37 days
Avg. Moon phase:
45.70%
Bortle Dark-Sky Scale:
4.00

RA center: 23h46m11s.93

DEC center: +80°5550.3

Pixel scale: 1.344 arcsec/pixel

Orientation: -95.266 degrees

Field radius: 1.109 degrees

WCS transformation: thin plate spline

More info:Open 

Resolution: 3227x4982

File size: 4.4 MB

Locations: Jardin, TOUL, Lorraine, France

Data source: Backyard

Description

While waiting for the galaxy season to pass, I tried my hand at growing roses with this nebula.
I took the opportunity to exceed my exposure time record with more than 100 hours on this target. There are about 70h of HaOIII dualband filter and 30h of RGB.

The image processing was really difficult. I would like to have more details in Ha but I'll settle for this version which I like all the same.

Sh2-174 is an unusual ancient planetary nebula. A planetary nebula is created when a low-mass star blows off its outer layers at the end of its life. The core of the star remains and is called a white dwarf. Usually the white dwarf can be found very near the center of the planetary nebula. But in the case of Sh2-174 it off to the left. (It is the  blue star near the center of the blue gas). This asymmetry is due to the planetary nebula's interaction with the interstellar medium that surrounds it.

Comments

Sky plot

Sky plot

Histogram

SH2-174 : Valentine Rose Nebula, 



    
        

            Thomas LELU

In these collections

Nebulae