Palomar Globular Cluster No. 4

Globular Star Cluster Palomar 4

Palomar 4 - a globular cluster

CCD image of globular star cluster Palomar Number 4 taken with an ST-6 CCD camera thru Kopernik's 20 inch F/8.1 telescope. The field of view is about 5x7 arc minutes. Exposure = 10 minutes.

Description of Palomar Globular Number 4 in
The Deep Sky Field Guide to Uranometria 2000:

Brightest stars = magnitude 18.0;
horizontal branch stars magnitude = 20.6
Concentration: 12 (scale 1{dense} to 12{loose})

This is one of extremely dim globular star clusters found on the survey photographs taken with the 48 inch Schmidt Camera at Palomar Observatory. Note that the dimmer stars in the cluster are dimmer than 20th magnitude.

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Palomar Globular Cluster Number: 4
Magnitude: 14.15
Constellation: Ursa Major
RA: 11h 29m 15.8s
Dec: +28° 58' 20" Epoch 2000
Size (mins): 2.1

Click below to

George Normandin, KAS

July 20th, 2000

Globular Star Cluster Palomar 4

Description of Palomar Globular Number 4 in The Deep Sky Field Guide to Uranometria 2000:

Brightest stars = magnitude 18.0; horizontal branch stars magnitude = 20.6 Concentration: 12 (scale 1{dense} to 12{loose})

Description of Palomar Globular Number 4 in
The Deep Sky Field Guide to Uranometria 2000:

Brightest stars = magnitude 18.0;
horizontal branch stars magnitude = 20.6
Concentration: 12 (scale 1{dense} to 12{loose})