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 Casiopea 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 — Estrella en Casiopea

HIP 8886; Epsilon Cassiopeiae; 45 Cassiopeiae

Magnitud 3.4^m Star Casiopea (Cas) Visible

Mapa Estelar + Lista + Plan

Acerca de Called Segin in Becvar

Descripción

Segin (Epsilon Cassiopeiae) is a gigante blanco-azulada of tipo espectral B3III at magnitude 3.38 en Casiopea. Located a unos 410 años luz de la Tierra, it has a temperatura superficial of roughly 15,000 K and a luminosity about 2,500 veces la solar. Segin marks the leftmost (westernmost) point of Cassiopeia's distinctive W-shape as seen from mid-latitudes boreales.

Consejos de Observación

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 hemisferio norte 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 otono and invierno por la noche.

Historia

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.

Datos Curiosos

Segin sits in a very rich área of the Vía Láctea. Several open cúmulo estelars are found nearby, including NGC 663 and NGC 654, which are attractive in small telescopios. The star itself is about 4 degrees from the famous Cúmulo Doble (NGC 869/884) in neighboring Perseus.