When is the best time to observe Called Segin in Becvar?

Called Segin in Becvar is best observed from September through November, with peak visibility during October when it transits around midnight in the Northern Hemisphere.

Where is Called Segin in Becvar located in the sky?

Called Segin in Becvar lies in the constellation Cassiopeia at right ascension 01h 54m and declination +63° 40′.

What telescope do I need to see Called Segin in Becvar?

At magnitude 3.4, Called Segin in Becvar is visible to the naked eye from dark skies, easy in any binoculars.

Called Segin in Becvar — Star in Cassiopeia

HIP 8886; Epsilon Cassiopeiae; 45 Cassiopeiae

Magnitude 3.4^m Star Cassiopeia (Cas) Visible

Star Map + List + Plan

About Called Segin in Becvar

Description

Segin (Epsilon Cassiopeiae) is a blue-white giant of spectral type B3III at magnitude 3.38 in Cassiopeia. Located about 410 light-years from Earth, it has a surface temperature of roughly 15,000 K and a luminosity about 2,500 times solar. Segin marks the leftmost (westernmost) point of Cassiopeia's distinctive W-shape as seen from mid-northern latitudes.

Observing Tips

Segin is easy to find as the western end of Cassiopeia's W asterism, the star opposite from Caph (Beta Cas) at the other end. Cassiopeia is circumpolar from most of the northern hemisphere and is visible year-round. The W shape is one of the most recognizable patterns in the sky and makes Segin effortless to locate. Best placed high overhead in autumn and winter evenings.

History

The name Segin appeared in Elijah Hinsdale Burritt's 1833 star atlas and is of uncertain origin — it may be a corruption of an Arabic name. Cassiopeia represents the vain queen of Ethiopian mythology who boasted of her beauty and was punished by Poseidon. Epsilon Cas has been part of this iconic asterism in Western astronomy for over two millennia.

Fun Facts

Segin sits in a very rich area of the Milky Way. Several open star clusters are found nearby, including NGC 663 and NGC 654, which are attractive in small telescopes. The star itself is about 4 degrees from the famous Double Cluster (NGC 869/884) in neighboring Perseus.