Yellow bright giant · Pegasus

Matar

Also known as: η Pegasi (η Peg), HIP 112158

mag 2.9210 light-years

About

Matar (η Pegasi) is a yellow bright giant of magnitude 2.9 in Pegasus, about 210 light-years away.

Matar is in the constellation Pegasus.
Best evenings: around mid-October 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 50° 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.

EyesEasy, even from town.
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	Matar
Designation	η Pegasi (η Peg)
Hipparcos number	HIP 112158
Type	Yellow bright giant
Spectral type	G2II-III
Colour	Pale orangeB−V colour index 0.85
Magnitude	2.9The smaller the number, the brighter.
Distance	210 light-yearsThe light you see left it around 1810.
Proper motion	0.029″ per year across the sky
Constellation	Pegasus
Right ascension (J2000)	22h 43m 00.1s
Declination (J2000)	+30° 13′ 16″