Yildun

23Del UMi

Add one script tag to your page:

<div data-starfyi="entity" data-slug="yildun"></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/yildun/?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/th/star/yildun/

Shields.io-compatible SVG badge:

Yildun badge ![Yildun](https://starfyi.com/badge/entity/yildun.svg)

Web Component:

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

Yildun is a A-type (White) star. It carries the designation 23Del UMi.

Located approximately 172.1 light-years from Earth, Yildun resides within the broader disk of our Milky Way galaxy.

Yildun is classified as a spectral class A star (A-type (White)) on the Harvard spectral classification system.

With an apparent magnitude of +4.35, Yildun sits near the limit of naked-eye visibility. It can be glimpsed without optical aid under dark skies, but binoculars will make observation much easier. Observers will note its blue-white hue, which corresponds to a B-V color index of +0.021.

คุณสมบัติทางกายภาพ

ประเภทสเปกตรัม A Class A — A-type (White)
ดัชนีสี (B−V) 0.021

การสังเกต

โชติมาตรปรากฏ +4.35
โชติมาตรสัมบูรณ์ 0.74
ระยะทาง 172 ly

ตำแหน่ง

ไรต์แอสเซนชัน 17h 32.22m
เดคลิเนชัน 86° 35.19′

Frequently Asked Questions

What type of star is Yildun?
Yildun is a Class A — A-type (White) star.
How far is Yildun from Earth?
Yildun is approximately 172.1 light-years from Earth.
Can you see Yildun with the naked eye?
With an apparent magnitude of 4.35, Yildun is visible to the naked eye.