39 Boötis
39 Boötis
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| 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]
^ 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}
^ ab Haggkvist, L.; Oja, T. "Results of BV photometry 1969-70 (Uppsala refractor)". Private Communication. SIMBAD. Bibcode:1970Priv.........0H.
^ 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.
^ 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.
^ 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 |
 | This binary or multiple star system–related article is a stub. You can help Wikipedia by expanding it. |
 | This main-sequence-star-related article is a stub. You can help Wikipedia by expanding it. |
Categories:
- Flamsteed objects
- Henry Draper Catalogue objects
- Binary stars
- Spectroscopic binaries
- Hipparcos objects
- F-type main-sequence stars
- Boötes
- HR objects
- Durchmusterung objects
- Multiple star stubs
- Main-sequence-star stubs
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