Yellow-white subgiant · Gemini

Wasat

Also known as: δ Geminorum (δ Gem), HIP 35550

mag 3.560 light-years

About

Wasat (δ Geminorum) is a yellow-white subgiant of magnitude 3.5 in Gemini, about 60 light-years away.

Wasat is in the constellation Gemini.
Best evenings: around late February 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 58° 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.

EyesVisible from the suburbs on a clear night, but lost in bright city skies.
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	Wasat
Designation	δ Geminorum (δ Gem)
Hipparcos number	HIP 35550
Type	Yellow-white subgiant
Spectral type	F0IV
Colour	Yellowish whiteB−V colour index 0.37
Magnitude	3.5The smaller the number, the brighter.
Distance	60 light-yearsThe light you see left it around 1966.
Proper motion	0.020″ per year across the sky
Constellation	Gemini
Right ascension (J2000)	07h 20m 07.4s
Declination (J2000)	+21° 58′ 56″