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IC 2631 (7,529 of 18,816)

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IC 2631

IC 2631, Bernes 142, Ced 112, Magakian 537

RA: 11h 09m 50s
Dec: −76° 36′ 52″

Con: Chamaeleon
Ch: MSA:1023, U2:465, SA:25

Ref: [2003A&A...399..141M]

(reference key)

Type: reflection nebula

Mag: B=?, V=?

Size: ?
PA: ?

Historical observations

Stewart, D

IC: "* 9 in L neb"

Published comments

Cederblad, S. (1946) [VII/231]

Ced 112 (-75 714)

Position (1900): RA 11 6.7, Dec - 76 4

Star: -75 714 (Mp=9.2:, V=9.2:, SpT=A0)

Spectrum of nebula: continuous spectrum (inferred from sp.t. of illuminating star)

Classification: Neb associated with mainly one star (which may be multiple) - star surrounded by a neb envelope without conspicuous structure (eg. lambda Scorpii)

Size: 2'x2'

Notes: "CPD -75 714 = HD 97300 nebulous. Disc. Stewart 1908 (852). FA 6 (502)."

Bernes, C. (1977)

Bernes, C. (1977) A catalogue of bright nebulosities in opaque dust clouds.

= Bernes 142

Magakian T. Yu. (2003)

= Bernes 142, IC2631, GN 11.08.3, Bran 341C, Ced 112

Class: C (reflection neb)

Contemporary observations

Magda Streicher

14 June 2009

REFLECTION NEBULA

RA: 11h09m48s - DEC: -76o37' - Magnitude: 11.6 - Size: 8'x7'

Tel: 12" S/C - 218 - 346x - Date: 14 June 2009 Vis: 5.4

The misty large haze around the white magnitude 9 stars is seen immediately. The periphery of the nebula is uneven with no define edge. The haze fades away slowly with a few pin point stars in the flimsy part. The field of view towards the south to south-west is very empty with star light. The unseen nebulosity could be the reason for that seeing that this part also display a mistiness.

19 Jan 2009

REFLECTION NEBULA

RA: 11h09m50s DEC: -76o36'47"

Tel: 12" 128x Date: 19 Jan 2009 - Visibility: Very good 5.8

A lovely piece of haze situated between faint stars. The nebulosity around NSV 18683 is framed in a mist and quite outstanding against a field of view which is bathed in haze. A faint 9-magnitude star situated south on the edge of the immediate glow. There appears to be less starlight further south in the field of view. It reminds me somehow of the Iris Nebula in Cepheus..

Auke Slotegraaf

1998 March 01

1998-03-01/02, 6-inch f/8.6 Newtonian, Die Boord. 5.6 (naked eye), seeing average. 9th mag star, supposed to be surrounded by nebulosity. With the seeing quite off tonight, this is not possible to confirm. Nothing seen (42x, 72, 144x).

Richard Ford

2013 February 6th, Wednesday

Location:Blesfontein Guest Farm

Time:10:21pm.

Sky Conditions:The most crystal clear sky possible.Dark moon and stars magnitude 6 and fainter are visible with the naked eye.Excellent clean sky,limited star flickering and brilliant objects.

Instrument:12-inch Dobsonian.

This nebula has a roundish shape whereby the central star is surrounded by a soft oval glow of white light seen at 75x and 150x.Around this nebula I have found some areas of uneven brightness.The central star of this nebula grows brighter compared to the far outskirts of this nebula.This nebula measures 8.6'x 8.6'.Chart No.95,NSOG Vol.3.

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