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Contains:  IC 4592, IC 4601, The star νSco, The star ω1Sco, The star ω2Sco
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Blue Horsehead Nebula from Negev Desert

Technical card


Dates:June 15, 2018June 27, 2019July 5, 2019

Frames:Baader UV/IR-Cut 2": 110x180" -15C bin 1x1

Integration: 5.5 hours

Avg. Moon age: 9.68 days

Avg. Moon phase: 14.78%

Bortle Dark-Sky Scale: 2.00

Temperature: 20.00


Basic astrometry details

Astrometry.net job: 2801166

RA center: 16h 14' 38"

DEC center: -19° 30' 32"

Pixel scale: 6.202 arcsec/pixel

Orientation: 178.935 degrees

Field radius: 2.453 degrees


Resolution: 2194x1815

Locations: Negev Desert, Mitzpe Ramon, Israel

Data source: Traveller

Description

2-part mosaic of Blue Horsehead reflection Nebula, based on combined data from 3 summer nights in 2018 and 2019 that I collected in Negev Desert. Due to its low altitude at my geographical location I had to dedicate 3 nights to get the data. Somehow, hunting for Blue Horse falls on a season when camels herd is wandering in the desert just nearby, so I could rightfully name this object the Blue Camel Nebula ;)

It appears that what looks like a single star (Nu Scorpii, or Jabbah) right at the Horse Blue Eye, in most of existing images of the Blue Horse Nebula I've seen - are actually two blue stars, as you can see in my version. Actually, Jabbah is one of the biggest multiple star system that we have so far discovered. It's considered to be a quintuple star system consisting of about two groups of stars but it is now thought it might be a septuple (7) star system [1].

A blue light on the left edge is not an artifact but leaked light from a nearby blue star outside frame of view.

[1] https://www.universeguide.com/star/jabbah

Comments

Author

spinlock
Leo Shatz
License: Attribution-NonCommercial Creative Commons
6916
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Blue Horsehead Nebula from Negev Desert, 



    
        

            Leo Shatz