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Trash variable star 5 EP

HR 2742

RA 112.7687° · Dec 82.4115° · star

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Score breakdown

· 1 badge
5 pts · Trash
Trash 15 pts → Common
  • Variable star +5
Total score 5

10 more points to reach Common.

Badges

  • Variable star · +5

Trivia

Could we get there?

  • Verdict. Hopelessly far for any craft humanity can build today.

Getting there

  • Aboard Voyager 1. ≈ 8.8 million years at Voyager 1's speed (17 km/s).
  • Fastest probe ever. ≈ 779.9 thousand years even at the Parker Solar Probe's 192 km/s.
  • At 10% light speed. ≈ 4995 years in a starship at a tenth of light speed.
  • Distance. 499 light-years from Earth.

Look-back time

  • Look-back time. The light you'd see left around the year 1527.

Saying hello

  • Say hello. A radio message and its reply would take 999 years round-trip.

Properties

absmag
-1.005
bv
1.633
constellation
Cam
dist ly
499.4733
mag
4.92
name
HR 2742
spect
M4IIIa

About HR 2742

HR 2742 is a trash variable star. It lies about 499.5 light-years from Earth, sits in the constellation Cam, shines at apparent magnitude 4.92 and has spectral type M4IIIa.

HR 2742 is a trash variable star worth 5 points across 1 science badge. Explore its facts, badges and place on the sky map, then add it to your dex on Spacedle.

How to see it

Look for HR 2742 in the constellation Cam. At apparent magnitude 4.92, it can be glimpsed with the unaided eye under dark skies.

Like any astronomical target, HR 2742 is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. The visibility panel above works out tonight's viewing window for your saved location.

Why HR 2742 is a trash variable star

HR 2742 scores 5 points on Spacedle's rarity scale, which places it in the trash tier. Another 10 points would lift it into a rarer tier.

That score comes from 1 science badge — Variable star — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.

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Sky imagery and survey data courtesy of Aladin Lite & CDS, Strasbourg. Object data from the NASA Exoplanet Archive, JPL Small-Body Database, and the ATNF Pulsar Catalogue.