Basic object information

Name: M 46
Type of object: Open cluster
Magnitude: 6.1
Size: 27.0'
Magnitude of brightest star: 8.7
Object classification: III 2 m
Description: !,Cl,vB,vRi,vL
Notes: PLNNB NGC 2438 on N edge,150 * 10-13 mag

Catalog position for epoch J2000.0

Right ascension: 07h 41m 48.0s
Declination: -14 49' 00"

Constellation: Puppis

Observer: Iiro Sairanen
Obs. place: Base del Teide (2280m above sea level), Tenerife, Spain
Date/Time: 19/20.4.2004 22:15


Telescope: Newton 110/805mm

Magn: 107x

Filter:

Field: 28'

NE Lim.mag: 7,0

Background sky: 2

Seeing: 2

Height: 28
Visuality: II, (III)

Weather: +11˚C, thin highclouds

Rich open cluster which includes a planetary nebula NGC 2438. The nebula was seen as an 11 mag roundish glow. Nice cluster to look but difficult to sketch. About 70 stars between 8-13 magnitudes.

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