What is the nearest supernova candidate (maybe Betelguese?)

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Discussion Overview

The discussion centers around identifying the nearest supernova candidate to Earth, with a specific mention of Betelgeuse and HR8210 as potential candidates. Participants explore the implications of a supernova event and seek information about the location of HR8210 in the sky.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant suggests that HR8210 is the nearest supernova candidate, approximately 150 light-years away, and poses a potential threat if it were to explode.
  • Another participant confirms HR8210 as a type-1 supernova candidate and provides additional details about its discovery and distance.
  • A participant inquires about the specific location of HR8210 in the sky, expressing frustration over the lack of easily accessible information.
  • Further, a participant provides links to resources for locating HR8210 and suggests using specific tools to find its coordinates.
  • Participants express a mix of curiosity and concern regarding the implications of a nearby supernova event.

Areas of Agreement / Disagreement

Participants generally agree on HR8210 being a notable supernova candidate, but there is no consensus on the implications or the significance of Betelgeuse in this context. The discussion remains open with multiple viewpoints on the topic.

Contextual Notes

Some participants reference specific tools and resources for locating stars, indicating a reliance on external databases and tools for accurate information. There may be limitations in the availability of data regarding HR8210's location.

RAD4921
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What is the nearest supernova candidate (maybe Betelguese?) to the Earth?
 
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That would be HR8210, discovered sometime in the 90's, but only recently recognised as a type-1 supernova candidate. It's only about 150 ly away, and be the end of us if it went off now.
 
LURCH said:
That would be HR8210, discovered sometime in the 90's, but only recently recognised as a type-1 supernova candidate. It's only about 150 ly away, and be the end of us if it went off now.
Where is HR8210 located in the sky? It's amazing that a simple search under HR8210 doesn't bring up anything with a location. Thanks.
 
(something else now to lay awake nights dreading) :eek:

------------
MORE

Mike2,

HR8210 is IK Pegasi.

link to Alcyone Star Information Tool --->
http://www.alcyone.de/SIT/

point to 'click for a single star', then click.
enter 8210 in 'enter HR number' box, then click

(
more directly --->
http://www.alcyone.de/SIT/bsc/HR8210.html
)

point to one of the catalogue names along the left and click

use this information to locate on Fourmilab YourSky Virtual Telescope --->
http://www.fourmilab.ch/yoursky/

for example: 21h 24m 7s for Right Ascension, 19°9'29" for Declination , click North 'yes'
point to 'Aim Virtual Telescope' and click
 
Last edited:
Thanks

Lurch
Thanks for the info
 

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