Theta Sagittae

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θ Sagittae
Location of θ Sagittae (circled)
Observation data
ICRS
)
Constellation Sagitta
A
Right ascension 20h 09m 56.6470s[1]
Declination +20° 54′ 54.094″[1]
Apparent magnitude (V) +6.516[2]
B
Right ascension 20h 09m 56.2405s[3]
Declination +20° 55′ 04.228″[3]
Apparent magnitude (V) +8.769[2]
Characteristics
A
Spectral type F3V[4]
U−B color index −0.04[5]
B−V color index +0.38[5]
B
Spectral type G5V[6]
B−V color index +0.732[2]
Distance
145.7 ± 0.2 ly
(44.67 ± 0.06 pc)
Absolute magnitude (MV)+5.58[7]
Details
A
Gyr
B
Mass0.95[11] M☉
Radius0.82[3] R☉
Luminosity0.516[3] L☉
Surface gravity (log g)4.526[12] cgs
Temperature5,394[3] K
HIP 99351, SAO
 88275
Database references
SIMBADA
B

Theta Sagittae (θ Sagittae) is a

light years
from the Sun.

The binary pair consists of two stars separated by 502 

′ was also listed as a companion by Struve,[17] again just an accidental optical association.[19]

References

  1. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  2. ^
    Bibcode:2000A&A...355L..27H
    .
  3. ^
    doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  4. ^
    doi:10.1086/191064
    .
  5. ^
    Bibcode:1991bsc..book.....H
    .
  6. doi:10.1086/143628
    .
  7. ^
    S2CID 119257644
    .
  8. ^
    S2CID 56118016
    .
  9. ^
    S2CID 33401607
    .
  10. S2CID 1106754
    .
  11. Bibcode:1999A&A...352..555A
    .
  12. doi:10.1093/mnras/stx1433
    .
  13. ^ "tet Sge". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2017-07-10.{{cite web}}: CS1 maint: postscript (link)
  14. ^
    doi:10.1088/0004-6256/143/5/124, 124, archived from the original
    on June 13, 2017.
  15. S2CID 18759600
    .
  16. doi:10.1111/j.1365-2966.2012.20308.x
    .
  17. ^
    doi:10.1086/323920
  18. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
  19. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR
    .
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