HD 61330

HD 61330
	Location of HD 61330 (circled)
Observation data; Epoch J2000 Equinox ICRS
Constellation	Puppis
Right ascension	07h 37m 22.10978s
Declination	−34° 58′ 06.7109″
Apparent magnitude (V)	4.53 + 6.87
Characteristics
Evolutionary stage	main sequence
Spectral type	B8IV
U−B color index	−0.31
B−V color index	−0.09
Astrometry
Radial velocity (Rv)	+24.00 km/s
Proper motion (μ)	RA: −14.21 mas/yr ; Dec.: +16.32 mas/yr
Parallax (π)	9.05±0.40 mas
Distance	360 ± 20 ly ; (110 ± 5 pc)
Absolute magnitude (MV)	−0.68
Orbit
Period (P)	78.38±2.00 yr
Semi-major axis (a)	0.322±0.003″
Eccentricity (e)	0.655±0.005
Inclination (i)	152.9±5.0°
Longitude of the node (Ω)	74.7±5.0°
Periastron epoch (T)	2016.754±0.500
Argument of periastron (ω); (secondary)	208.4±5.0°
Details
f Pup A
Mass	3.32±0.15 M☉
Luminosity	270 L☉
Temperature	11,480 K
Rotational velocity (v sin i)	56 km/s
f Pup C
Mass	2.11±0.10 M☉
Other designations
	f Puppis, CD−34°3755, CCDM J07374-3458ABC, FK5 290, GC 10246, GSC 07113-03280, HIP 37096, HR 2937, HD 61330, SAO 198195, WDS J07374-3458AB,C
Database references
SIMBAD	data

HD 61330 (f Puppis) is a binary star in the constellation Puppis. Its apparent magnitude is 4.53 and it is approximately 360 light years away based on parallax.

The primary and secondary, with respective labels A and C, take 78 years to complete an orbit, with a considerable eccentricity of 0.655. Another closer component, B, has been reported at 6.1 magnitude and 0.1" separation, but subsequent observers have repeatedly failed to confirm it.

References

1 2 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.
1 2 3 4 5 6 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. Vizier catalog entry
1 2 3 4 Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.
↑ Malkov, O. Yu.; Tamazian, V. S.; Docobo, J. A.; Chulkov, D. A. (2012). "Dynamical masses of a selected sample of orbital binaries". Astronomy & Astrophysics. 546: A69. Bibcode:2012A&A...546A..69M. doi:10.1051/0004-6361/201219774. Vizier catalog entry
1 2 3 4 Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID 55586789. Vizier catalog entry
↑ Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.
↑ Kharchenko, N.V.; Scholz, R.-D.; Piskunov, A.E.; Röser, S.; Schilbach, E. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776. S2CID 119323941.
1 2 3 4 Docobo, José Ángel; Campo, Pedro Pablo; Gómez, Jorge; Piccotti, Luca; Caballero-Valdes, Camila; Mendez, Rene A.; Costa, Edgardo (2026-07-31). "22 Orbits of Binaries Based on SOAR Speckle Observations: Systems with Early Type Components". The Astronomical Journal. 172 (2): 133. doi:10.3847/1538-3881/ae877f. ISSN 0004-6256.
↑ Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry
↑ Tokovinin, Andrei; Mason, Brian D.; Mendez, Rene A.; Costa, Edgardo (July 2024). "Speckle Interferometry at SOAR Telescope in 2023". The Astronomical Journal. 168 (1): 28. Bibcode:2024AJ....168...28T. doi:10.3847/1538-3881/ad4d56. ISSN 0004-6256.

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[XHIP-1] 1 2 Anderson, E.; Francis, Ch. (2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. XHIP record for this object at VizieR.

[vanLeeuwen2007-2] 1 2 3 4 5 6 Van Leeuwen, F. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357. S2CID 18759600. Vizier catalog entry

[Ducati2002-3] 1 2 3 4 Ducati, J. R. (2002). "VizieR Online Data Catalog: Catalogue of Stellar Photometry in Johnson's 11-color system". CDS/ADC Collection of Electronic Catalogues. 2237. Bibcode:2002yCat.2237....0D.

[Malkov2012-4] Malkov, O. Yu.; Tamazian, V. S.; Docobo, J. A.; Chulkov, D. A. (2012). "Dynamical masses of a selected sample of orbital binaries". Astronomy & Astrophysics. 546: A69. Bibcode:2012A&A...546A..69M. doi:10.1051/0004-6361/201219774. Vizier catalog entry

[Zorec2012-5] 1 2 3 4 Zorec, J.; Royer, F. (2012). "Rotational velocities of A-type stars". Astronomy & Astrophysics. 537: A120. arXiv:1201.2052. Bibcode:2012A&A...537A.120Z. doi:10.1051/0004-6361/201117691. S2CID 55586789. Vizier catalog entry

[Hoffleit1991-6] Hoffleit, D.; Warren, W. H. (1995). "VizieR Online Data Catalog: Bright Star Catalogue, 5th Revised Ed. (Hoffleit+, 1991)". VizieR On-line Data Catalog: V/50. Originally Published in: 1964BS....C......0H. 5050. Bibcode:1995yCat.5050....0H.

[Kharchenko2007-7] Kharchenko, N.V.; Scholz, R.-D.; Piskunov, A.E.; Röser, S.; Schilbach, E. (2007). "Astrophysical supplements to the ASCC-2.5: Ia. Radial velocities of ~55000 stars and mean radial velocities of 516 Galactic open clusters and associations". Astronomische Nachrichten. 328 (9): 889. arXiv:0705.0878. Bibcode:2007AN....328..889K. doi:10.1002/asna.200710776. S2CID 119323941.

[Docobo2026-8] 1 2 3 4 Docobo, José Ángel; Campo, Pedro Pablo; Gómez, Jorge; Piccotti, Luca; Caballero-Valdes, Camila; Mendez, Rene A.; Costa, Edgardo (2026-07-31). "22 Orbits of Binaries Based on SOAR Speckle Observations: Systems with Early Type Components". The Astronomical Journal. 172 (2): 133. doi:10.3847/1538-3881/ae877f. ISSN 0004-6256.

[WDS-9] Mason, Brian D.; Wycoff, Gary L.; Hartkopf, William I.; Douglass, Geoffrey G.; Worley, Charles E. (2001). "The 2001 US Naval Observatory Double Star CD-ROM. I. The Washington Double Star Catalog". The Astronomical Journal. 122 (6): 3466. Bibcode:2001AJ....122.3466M. doi:10.1086/323920. Vizier catalog entry

[Tokovinin2024-10] Tokovinin, Andrei; Mason, Brian D.; Mendez, Rene A.; Costa, Edgardo (July 2024). "Speckle Interferometry at SOAR Telescope in 2023". The Astronomical Journal. 168 (1): 28. Bibcode:2024AJ....168...28T. doi:10.3847/1538-3881/ad4d56. ISSN 0004-6256.