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Basic object information
Name: M 73
Type of object: Open cluster
Magnitude: 8.9
Size: 2.8'
Number of stars: 4
Magnitude of brightest star: 10.0
Object classification: IV 1 p :b
Description: Cl,eP,vlC,No neb
Notes: 4 or 5 10th mag stars;Messier saw neby but there is none
Catalog position for epoch J2000.0
Right ascension: 20h 59m 00.0s
Declination: -12° 38' 00"
Constellation: Aquarius
Observer: Iiro Sairanen
Obs. place: Mellonmäki, Imatra, Finland
Date/Time: 27/28.8.2003 0.31
Telescope: Dobson 406/1830mm
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Magn: 244x |
Filter: |
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Field: 12' |
NE Lim.mag: 5,6 |
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Background sky: 4 |
Seeing: 4 |
Height: 15°
Visuality: I
Weather: windy, humid, +7°C
Neljän 10-11 mag tähden muodostama Y-kuvio.