Deep Sky Object in Summer
vdB111 (Reflection Nebula in Ophiuchus)

Click on image to enlarge

Date & Time: May 28 2022, from 25:44 to 26:51 JST(+0900)
Composed 10 shots with 6 minutes exposed
Optical: Meade 25cm(10") Schmidt-Cassegrain with conversion lens (f=1600mm, F6.3)
with BaaderPlanetarium Moon&Skyglow filter
Auto-guided with Meade LX200 Equatorial & Lacerta M-GEN
Digital Camera: Nikon D810A
Location: Ooizumi, Hokuto city, Yamanashi pref.

Camera Settings: Recording Format...14bit CCD-RAW, converted to 16bit TIFF(4080×4080)
Device Size...20×20mm
Sensitivity...ISO4000, White Balance...Daylight


vdB111 / Reflection Nebula, type 4 R
R.A.17h 18m 48.0s (2000.0)
Dec.+06°05' 00" (2000.0)
Apparent Size9.0×6.3'
Real Size1.2 light yrs.
Magnitude -
Distance455 light yrs.
Other IDsLBN 88
In the northern part of the pentagon of Ophiuchus, we can find out a small reflection nebula vdB111 at 7.6° southwest of αOph (Rasalhague). The nebula has a size of a bit smaller than 10 arc minutes, reflecting the light of 6.5th magnitude central yellow giant. The distance from the solar system has been estimated as about 450 light years.



Sh2-120, 121
vdB133

Copyright(c) 2022 by Naoyuki Kurita, All rights reserved.
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