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EntityQ2660968· pop 10· linked from 86 articles

XO-4 is a star located approximately 863 light-years away from Earth in the Lynx constellation. It has a magnitude of about 11 and cannot be seen with the naked eye but is visible through a small telescope. A search for a binary companion star using adaptive optics at MMT Observatory was negative.

Astronomical data · SIMBAD

Object type
Em*
Spectral type
F5
Distance
863 light-years
Redshift
z = 0.000004312993051813763
Coordinates
RA 110.3882° · Dec 58.2681°
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via SIMBAD · CDS Strasbourg

Wikidata facts

Constellation
Lynx
Child body
Hämarik
Distance from Earth
293
Radius
1.55
Mass
1.32
Show 17 more facts
catalog code
TIC 51234631
effective temperature
5700
spectral class
F5
metallicity
0
radial velocity
-3.18
apparent magnitude
10.515098
parallax
3.7812
epoch
J2000.0
stellar rotational velocity
8.8
surface gravity
62000
name
Koit
luminosity
3.4322722
right ascension component of proper motion
-17.008
declination component of proper motion
5.463
right ascension
110.38816768115
declination
58.26808598149002
age estimated by a dating method
2.1
Sources (2)

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Encyclopedic overview

4 sections
Contents
  • Planetary system
  • Notes
  • References
  • External links

XO-4 is a star located approximately 863 light-years away from Earth in the Lynx constellation. It has a magnitude of about 11 and cannot be seen with the naked eye but is visible through a small telescope. A search for a binary companion star using adaptive optics at MMT Observatory was negative.

The star XO-4 is named Koit. The name was selected in the NameExoWorlds campaign by Estonia, during the 100th anniversary of the IAU. Koit is Estonian for dawn, and was named for a character in a folk tale written by Friedrich Robert Faehlmann.

Excerpted from Wikipedia’s “Koit” article, available under the CC BY-SA 4.0 licence.

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