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39 Boötis









39 Boötis


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39 Boötis

Observation data
Epoch J2000      Equinox J2000

Constellation

Boötes

Right ascension
14h 49m 41.29265s[1]

Declination
+48° 43′ 14.9077″[1]

Apparent magnitude (V)
5.69[2]
Characteristics

Spectral type
F8V+F7V[3]
B−V color index
+0.475[2]
Astrometry
Radial velocity (Rv) −30.90 ± 0.3[4] km/s
Proper motion (μ) RA: −77.94[1] mas/yr
Dec.: 100.83[1] mas/yr
Parallax (π) 14.58 ± 0.51[1] mas
Distance 224 ± 8 ly
(69 ± 2 pc)
Absolute magnitude (MV) 2.53[5]
Details
Mass 1.43[5] M
Rotational velocity (v sin i) 161.0[5] km/s
Other designations
CCDM J14497+4843, HIP 72524, HR 5538, WDS J14497+4843, AG+48° 1158, HD 131041, SAO 45231, BD+49° 2326.
Database references
SIMBAD data

39 Boötis (abbreviated as 39 Boo) or ADS 9406 B is a star in the constellation Boötes. A multiple star system, it has a combined apparent magnitude of 5.68. The system is 224 ± 8 light-years distant.
[1] It is composed of BD+49 2326A, which has an apparent magnitude of 6.248 and spectral type F8V, and BD+49 2326B, which has an apparent magnitude of 6.62 and spectral type F7V. Both stars are themselves spectroscopic binaries.[3]



References[edit]





  1. ^ abcdef van Leeuwen, F. (2007). "Validation of the New Hipparcos Reduction". Astronomy and Astrophysics. 474 (2): 653–64. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357..mw-parser-output cite.citation{font-style:inherit}.mw-parser-output q{quotes:"""""""'""'"}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-limited a,.mw-parser-output .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}


  2. ^ ab Haggkvist, L.; Oja, T. "Results of BV photometry 1969-70 (Uppsala refractor)". Private Communication. SIMBAD. Bibcode:1970Priv.........0H.


  3. ^ ab Abt, Helmut A. (2009). "MK Classifications of Spectroscopic Binaries". The Astrophysical Journal Supplement. 180 (1): 117–18. Bibcode:2009ApJS..180..117A. doi:10.1088/0067-0049/180/1/117.


  4. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.


  5. ^ abc Pizzolato, N.; Maggio, A.; Sciortino, S. (September 2000), "Evolution of X-ray activity of 1-3 Msun late-type stars in early post-main-sequence phases", Astronomy and Astrophysics, 361: 614–628, Bibcode:2000A&A...361..614P




Components[edit]



























NAME Right ascension Declination
Apparent magnitude (V)
Spectral type Database references
ADS 9406 A (BD+49 2326A) 14h 49m 41.5s
+48° 43' 09
6.2 F5
Simbad
ADS 9406 C (CCDM J14497+4843B) 14h 49m 41.8s
+48° 43' 11
6.7 F5
Simbad
















Retrieved from "https://en.wikipedia.org/w/index.php?title=39_Boötis&oldid=849121271"





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