IC 4592 – The Blue Horsehead Reflection Nebula

Image Title: IC 4592 HaLRGB

Copyright: Mirko Tondinelli

Date image was taken: July 14, 2025

Location: Texas _ Starfront Observatory

Data Acquisition Method: Other

Description and Details: Blood Red Blue Horse's Head

My personal interpretation

IC 4592 is a reflection nebula visible in the constellation Scorpius.
It is a vast nebulous system that receives the blue light from its nearest star, ν Scorpii, reflecting it and becoming bright as a deep blue cloud. Also nearby is the star HD 145501, a blue star of magnitude 6.55 that is paired with the previous star. Both stars are located in the region around the Rho Ophiuchi Cloud (the next object we are already photographing ), a large nebulous complex where star formation is active.

The unique thing about our photo is that, in addition to the classic LRGB that everyone captures, we decided (and with great success, I'd say) to go further: capture the hydrogen band (with the 3nm half-wave filter kindly provided on loan by Optolong Astronomy Filter). This choice could not have been more appropriate... My astrophotographer friends and I were amazed by the amount of signal that gradually emerged from the many exposures we captured...

I hope you like this version of mine!!

Here are the technical data:
Luminance: 94 × 600″ = 15h40'
A: 2h 33′
D: 2h 28′
B: 2h 30′
Has: 22h 50′
Total 46h

TS-Optics 70 mm f/5 Quadruplet
QHYCCD QHY268 M
iOptron HAE29EC
DeepSkyDad Flap Panel (FP2)
QHYCCD QHYCFW3-L
WandererBox Plus V3
WandererRotator Mini
ZWO EAF

Optolong Filter User LRGB/Ha 3nm filters

@itex_observatory

Name: Mirko Tondinelli

Website or Facebook Profile: https://www.facebook.com/share/1E7ApdPhhu/