Hemisphere:  Southern  ·  Constellation: Orion (Ori)  ·  Contains:  Flame Nebula  ·  IC 434  ·  NGC 2023  ·  Orion B
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Horsehead Nebula, 



    
        

            Jorge Herreros
Horsehead Nebula
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Horsehead Nebula

Getting plate-solving status, please wait...
Horsehead Nebula, 



    
        

            Jorge Herreros
Horsehead Nebula
Powered byPixInsight

Horsehead Nebula

Technical card

Imaging telescopes or lenses: Self Made 20" f3

Imaging cameras: QHYCCD QHY268C

Mounts: JMI NGT 18 modified

Guiding cameras: QHYCCD QHY5L-Ⅱ-M

Filters: Astronomik H Alpha 12nm 2''  ·  Astronomik O III 12nm 2"

Accessory: QHYCCD QHY OAG - Medium  ·  Televue Paracorr type II  ·  QHYCCD QHY 2" Filter wheel


Dates:Feb. 14, 2021

Frames:
Astronomik H Alpha 12nm 2'': 20x300" (1h 40') bin 1x1
Astronomik O III 12nm 2": 22x300" (1h 50') bin 1x1

Integration: 3h 30'

Avg. Moon age: 2.63 days

Avg. Moon phase: 7.61%

Bortle Dark-Sky Scale: 8.00


Basic astrometry details

Astrometry.net job: 4580004

RA center: 05h40m48s.7

DEC center: -02°2504

Pixel scale: 0.909 arcsec/pixel

Orientation: 89.546 degrees

Field radius: 0.385 degrees


Resolution: 1880x2405

Data source: Backyard

Description

In this photography I applied black velour on the spider.

The spikes decreased a lot, but a lot of light is added around the stars.

I think I prefer the spikes.

I never expected that in a 20 "f3 Newtonian telescope the spikes could almost completely disappear, because the spider is thick to rigidly support the diagonal mirror.

Comments

Sky plot

Sky plot

Histogram

Horsehead Nebula, 



    
        

            Jorge Herreros