Eta Cassiopeiae

name=Eta Cassiopeiae A/B }}

	Epoch	J2000
	Constell	Cassiopeia
	Ra	00h 49m 063s
	Dec	+57&deg 48' 54"

	Class	G3 V/K7 V
	B-v	057/139
	U-b	002/103

	Radial V	+85
	Prop Mo Ra	108711
	Prop Mo Dec	-055965
	Parallax	16838
	P Error	059
	Dist Ly	1936
	Dist Pc	5939

	Name	Gl 34B
	Period	480
	Axis	1199
	Eccentricity	0497
	Inclination	3476
	Node	9842

	Age
	Metal	63-68%
	Mass	091/056
	Radius	098/066
	Rotation
	Luminosity	120/03

Eta Cassiopeiae (η Cas / η Cassiopeiae) is a Star System 19.4 Light Year s away from Earth , in the constellation Cassiopeia . Sometimes the traditional name '''Achird''' is used.

The primary star in the η Cassiopeiae system is a yellow Dwarf (main sequence) star of Spectral Type G3 V, putting it in the same spectral class as our Sun , which is of spectral type G2 V. It therefore resembles what our Sun might look like if we were to observe it from η Cassiopeiae. The star is of Apparent Magnitude 3.45. The star has a cooler and dimmer (magnitude 7.51) orange dwarf companion of spectral type K7 V.

There are six dimmer Optical Components reported. However, none of them are related to the η Cassiopeiae system and are in reality more distant stars.

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