Deep Sky Object in Summer
NGC6302 (Bug Nebula in Scorpius)


Click on image to enlarge

Date & Time: Jul 17 2021, from 23:23 to 23:52 JST(+0900)
Composed 8 shots with 4 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



NGC6302 / Planetary Nebula, type VI
R.A.17h 13m 42.0s (2000.0)
Dec.-37° 06' 01" (2000.0)
Apparent Size85.0"×44.0"
Real SizeApprox. 3 light yrs.
Magnitude12.8
Distance3400 light yrs.
Other IDsESO 392-5, RCW 124
Gum 60, PK 349+1.1
This image shows you a planetary nebula of NGC6302 bathed in the Milky Way of Scorpius. The nebula is positioned about 2 degrees southwest of the Cat's paw nebula (NGC6334).
Although the planetary nebula has a size of an arc minute or so according to the datasheet, actually it reaches approx. three arc minutes in east-west direction including the tactile structure. The characteristic apparent figure gives nicknames of "The Bug Nebula" or "The Butterfly Nebula".
The Bug Nebula is a typical showcase of the bipolar-classed planetary nebula which has been formed with distributed gaseous matters in opposite directions, has been a subject of various researches for a long time. It is estimated that the nebula is positioned at about 3400 light years away.




NGC6210

NGC6309


Copyright(c) 2021 by Naoyuki Kurita, All rights reserved.
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