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47 Ursae Majoris

Proper NameChalawan
Bayer DesignationNone
Flamsteed Number47 Ursae Majoris
HR (BSC)4277
ConstellationUrsa Major
Right Ascension10h 59m 28s
Declination+40° 25' 49"
Distance45 light years
14 parsecs
MagnitudeApparent: +5.0
Absolute: +4.3
Spectral ClassG1-VFe-0.5 yellow dwarf
Planets in this system Taphao Thong (Chalawan b, 47 Ursae Majoris b), gas giant
Taphao Kaew (Chalawan c, 47 Ursae Majoris c), gas giant
Chalawan d (47 Ursae Majoris d), gas giant
Optimum VisibilityMarch
NotesThis fifth-magnitude yellow star has at least three planets in orbit. All three of these planets are gas giants, and the most massive of these, the inner planet Taphao Thong, is more than twice as massive as Jupiter. The star Chalawan and its planets take their names from Thai folk tradition.

Imagery provided by Aladin sky atlas


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