Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  36 ups Ori  ·  41 the01 Ori  ·  42 c Ori  ·  43 the02 Ori  ·  44 iot Ori  ·  45 Ori  ·  49 d Ori  ·  De Mairan's nebula  ·  Great Orion Nebula  ·  Hatysa  ·  IC 420  ·  IC 430  ·  Lower Sword  ·  M 42  ·  M 43  ·  Mairan's Nebula  ·  NGC 1924  ·  NGC 1973  ·  NGC 1975  ·  NGC 1976  ·  NGC 1977  ·  NGC 1980  ·  NGC 1981  ·  NGC 1982  ·  NGC 1999  ·  Orion  ·  Orion Nebula  ·  Sh2-279  ·  Sh2-281  ·  Thabit  ·  And 12 more.
Getting plate-solving status, please wait...
M42 and surroundings - Wei-Hao Wang's Raw Data, 



    
        

            pfile
Powered byPixInsight
Getting plate-solving status, please wait...
M42 and surroundings - Wei-Hao Wang's Raw Data, 



    
        

            pfile
Powered byPixInsight

Technical card

Dates:Dec. 23, 2019

Frames: 20x300" (1h 40')

Integration: 1h 40'

Avg. Moon age: 26.73 days

Avg. Moon phase: 8.62%


Astrometry.net job: 4166076

RA center: 5h 35' 8"

DEC center: -5° 16' 47"

Pixel scale: 2.062 arcsec/pixel

Orientation: 5.202 degrees

Field radius: 2.953 degrees


Resolution: 6188x8254

Data source: Public amateur data

Description

This is M42 and surroundings, the raw data for which was made public a couple of days back by Wei-Hao Wang. The link to the data release announcement is here: https://www.astrobin.com/nnu6nm/?nc=user

this data was acquired on 2019-12-23 using a Pentax 645z DSLR and an FSQ106 on a CEM40 mount.

the data consists of 20x300s and 20x20s lights, with 13 300s darks and 24 2s flats (which were bias calibrated.)

the location was 大雪山 (Daxueshan). i think this is probably the one in Taiwan rather than the one in mainland china given WHW's location.

all processing in PixInsight 1.8.8-7.

Comments

Sky plot

Sky plot

Histogram

M42 and surroundings - Wei-Hao Wang's Raw Data, 



    
        

            pfile