Yellow main-sequence star · Ursa Major

Chalawan

Also known as: 47 Ursae Majoris (47 UMa), HIP 53721

mag 5.046 light-years

About

Chalawan (47 Ursae Majoris) is a yellow main-sequence star of magnitude 5.0 in Ursa Major, about 46 light-years away.

Chalawan is in the constellation Ursa Major.
Best evenings: around late April it is highest at about 9 pm (10 pm in summer time); a month earlier, two hours later.
Where on Earth: it is seen well, at least 10° up, from north of 40° S.

When it rises and sets tonight, how high it climbs and how much the Moon gets in the way are worked out in your browser for your place.

EyesNeeds a dark sky away from city lights.
Binoculars (10×50)A sharp point; binoculars bring out its colour and the fainter stars around it.
Telescope (6–8 inch)Still a point of light at any magnification — stars are too far away to show a disc. Low in the sky, bright stars twinkle and flash colours.

Stars look the same in any instrument: brighter and sharper, but never bigger.

Proper name	Chalawan
Designation	47 Ursae Majoris (47 UMa)
Hipparcos number	HIP 53721
Type	Yellow main-sequence star
Spectral type	G0V
Colour	YellowB−V colour index 0.62
Magnitude	5.0The smaller the number, the brighter.
Distance	46 light-yearsThe light you see left it around 1980.
Proper motion	0.32″ per year across the sky
Constellation	Ursa Major
Right ascension (J2000)	10h 59m 28.0s
Declination (J2000)	+40° 25′ 49″