Alpheratz

21Alp And

Add one script tag to your page:

<div data-starfyi="entity" data-slug="alpheratz"></div>
<script src="https://cdn.jsdelivr.net/npm/starfyi-embed@1/dist/embed.min.js" defer></script>

Embed as an iframe:

<iframe src="https://starfyi.com/iframe/entity/alpheratz/?style=modern&theme=light" width="420" height="400" frameborder="0" loading="lazy" style="border:0;border-radius:10px;max-width:100%"></iframe>

Paste the URL in WordPress, Medium, or Ghost:

https://starfyi.com/ja/star/alpheratz/

Shields.io-compatible SVG badge:

Alpheratz badge ![Alpheratz](https://starfyi.com/badge/entity/alpheratz.svg)

Web Component:

<starfyi-entity slug="alpheratz"></starfyi-entity>
<script src="https://cdn.jsdelivr.net/npm/starfyi-embed@1/dist/embed.min.js" defer></script>

A blue-white B-type star, Alpheratz is the leading light of Andromeda, holding the Alpha designation, and its near-neutral colour index of −0.038 marks the transition between the hottest blue stars and the white A class. It lies about 97 light-years away and shines at apparent magnitude 2.07. With an absolute magnitude of −0.30, its intrinsic brightness modestly exceeds that of typical white and blue-white stars, and the small difference between its apparent and absolute figures reflects its moderate distance. Alpheratz anchors one corner of the star pattern outlining the figure of Andromeda, at the junction where that constellation meets the neighbouring square of Pegasus.

物理的特性

スペクトル型 B Class B — B-type (Blue-White)
色指数 (B−V) -0.038

観測

見かけの等級 +2.07
絶対等級 -0.30
距離 97.0 ly
星座 Andromeda

位置

赤経 0h 8.39m
赤緯 29° 5.43′

Frequently Asked Questions

What type of star is Alpheratz?
Alpheratz is a Class B — B-type (Blue-White) star.
How far is Alpheratz from Earth?
Alpheratz is approximately 97.0 light-years from Earth.
Can you see Alpheratz with the naked eye?
With an apparent magnitude of 2.07, Alpheratz is visible to the naked eye.
What constellation is Alpheratz in?
Alpheratz is located in the constellation Andromeda.