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{{Starbox begin|name=24 Cancri}}
{{starbox short
{{Starbox observe 2s
⚫
|constell= [[Cancer (constellation)|Cancer]]
|epoch=[[J2000]]
⚫
|name= 24 Cancri
⚫
|constell=[[Cancer (constellation)|Cancer]]
|names= 24 Cancri, 24 Cnc, HIP 41389, HIC 41389, ADS 6811, CCDM J08267+2432, WDS J08267+2432
|component1=24 Cnc A
|ra= {{RA|08|26}}
|ra1={{RA|08|26|39.792}}<ref name=TYC2>{{cite journal|title=The Tycho-2 catalogue of the 2.5 million brightest stars|author=Høg, E.|display-authors=etal|date=2000|journal=Astronomy and Astrophysics|volume=355|pages=L27–L30|bibcode=2000A&A...355L..27H}}</ref>
|dec= {{DEC|+24|32}}
|dec1={{DEC|+24|32|03.01}}<ref name=TYC2/>
|appmag_v1=6.89<ref name=TYC2/>
|component2=24 Cnc B
|ra2={{RA|08|26|40.06}}<ref name=SimbadB>{{cite simbad|title=* 24 Cnc B|accessdate=3 June 2017}}</ref>
|dec2={{DEC|+24|32|06.6}}<ref name=SimbadB/>
|appmag_v2=7.81<ref name=SimbadB/>
}}
}}
{{Starbox character
|class=F0III<ref>{{cite simbad|title=HR 3312|accessdate=3 June 2017}}</ref> / F7V<ref name=SimbadB/>
|b-v=+0.30<ref name=EgUBV>{{cite journal|author1=Mermilliod, J.-C.|title=Compilation of Eggen's UBV data, transformed to UBV (unpublished)|journal=Catalogue of Eggen's UBV data|url=http://cdsads.u-strasbg.fr/cgi-bin/nph-bib_query?1986EgUBV........0M&db_key=AST&nosetcookie=1|date=1986|bibcode= 1986EgUBV........0M}}</ref>
|u-b=+0.06<ref name=EgUBV/>
}}
{{Starbox astrometry
|radial_v=15.4 ± 3.0<ref name=Gontcharov>{{cite journal|url=http://adsabs.harvard.edu/abs/2006AstL...32..759G|title=Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system|author=Gontcharov, G. A.|date=2006|journal=Astronomy Letters|volume=32|issue=11|pages=759–771|bibcode=2006AstL...32..759G|doi=10.1134/S1063773706110065|arxiv=1606.08053}}</ref>
|prop_mo_ra=-41.50<ref name=HIP>{{cite journal|title=Validation of the new Hipparcos reduction|url=http://www.aanda.org/index.php?option=com_article&access=bibcode&Itemid=129&bibcode=2007A%2526A...474..653VFUL|author=van Leeuwen, F.|display-authors=etal|journal=Astronomy and Astrophysics|volume=474|issue=2|pages=653–664|date=2007|arxiv=0708.1752|bibcode=2007A&A...474..653V|doi=10.1051/0004-6361:20078357}}</ref>
|prop_mo_dec=-79.51<ref name=HIP/>
|parallax=12.54
|p_error=0.94
|parallax_footnote=<ref name=HIP/>
}}
{{Starbox orbit
|reference=<ref name=Docobo>{{cite journal|bibcode=2009AJ....138.1159D|doi=10.1088/0004-6256/138/4/1159|title=Binary Stars with Components of Solar Type: 25 Orbits and System Masses|journal=The Astronomical Journal|volume=138|issue=4|pages=1159|year=2009|last1=Docobo|first1=J. A.|last2=Ling|first2=J. F.}}</ref>
|period=21.78 ± 0.20
|periastron=B 1998.42 ± 0.30
|eccentricity=0.079 ± 0.009
|axis=0.149 ± 0.001
|inclination=19.1 ± 1.0
|node=153.6 ± 5.0
|periarg=51.0 ± 10.0
}}
{{Starbox catalog
|names={{odlist|F=24 Cnc|ADS=6811 AB|CCDM=J08267+2432AB}}
|component1=24 Cnc A
|names1={{odlist|B=+25° 1920|HD=71152|HIP=41389|HR=3312|SAO=80184}}
|component2=24 Cnc B
|names2={{odlist|B=+25 1920|HD=71153|HR=3313|SAO=80185}}
}}
{{Starbox reference
|Simbad=HR+3312|sn=24 Cnc
|Simbad2=24+Cnc+A|sn2=24 Cnc A
|Simbad3=24+Cnc+B|sn3=24 Cnc B
}}
{{Starbox end}}
'''24 Cancri''' ('''24 Cnc''', '''HIP 41389''', '''HIC 41389''', '''CCDM J08267+2432''') is a [[trinary star]]<ref name=SIMBAD-24Cancri>SIMBAD, [http://simbak.cfa.harvard.edu/simbad/sim-basic?Ident=24+Cancri&submit=SIMBAD+search 24 Cancri] (accessed 4/4/2012)</ref><ref name=SIMBAD-HR3312/> in the [[constellation]] [[Cancer (constellation)|Cancer]]. Two of its components' (''24 Cancri A'' and ''24 Cancri BC'') [[apparent magnitude]]s are 6.51 and 7.81.
'''24 Cancri''' ('''24 Cnc''', '''HIP 41389''', '''HIC 41389''', '''CCDM J08267+2432''') is a [[trinary star]]<ref name=SIMBAD-24Cancri>SIMBAD, [http://simbak.cfa.harvard.edu/simbad/sim-basic?Ident=24+Cancri&submit=SIMBAD+search 24 Cancri] (accessed 4/4/2012)</ref><ref name=SIMBAD-HR3312/> in the [[constellation]] [[Cancer (constellation)|Cancer]]. Two of its components' (''24 Cancri A'' and ''24 Cancri BC'') [[apparent magnitude]]s are 6.51 and 7.81.


Revision as of 18:18, 3 June 2017

24 Cancri
Observation data
Epoch J2000      Equinox J2000
Constellation Cancer
24 Cnc A
Right ascension 08h 26m 39.792s[1]
Declination +24° 32′ 03.01″[1]
Apparent magnitude (V) 6.89[1]
24 Cnc B
Right ascension 08h 26m 40.06s[2]
Declination +24° 32′ 06.6″[2]
Apparent magnitude (V) 7.81[2]
Characteristics
Spectral type F0III[3] / F7V[2]
U−B color index +0.06[4]
B−V color index +0.30[4]
Astrometry
Radial velocity (Rv)15.4 ± 3.0[5] km/s
Proper motion (μ) RA: -41.50[6] mas/yr
Dec.: -79.51[6] mas/yr
Parallax (π)12.54 ± 0.94 mas[6]
Distance260 ± 20 ly
(80 ± 6 pc)
Orbit[7]
Period (P)21.78 ± 0.20 yr
Semi-major axis (a)0.149 ± 0.001″
Eccentricity (e)0.079 ± 0.009
Inclination (i)19.1 ± 1.0°
Longitude of the node (Ω)153.6 ± 5.0°
Periastron epoch (T)B 1998.42 ± 0.30
Argument of periastron (ω)
(secondary)		51.0 ± 10.0°
Other designations
24 Cnc, ADS 6811 AB, CCDM J08267+2432AB
24 Cnc A: +25° 1920, HD 71152, HIP 41389, HR 3312, SAO 80184
24 Cnc B: +25 1920, HD 71153, HR 3313, SAO 80185
Database references
SIMBAD24 Cnc
24 Cnc A
24 Cnc B

24 Cancri (24 Cnc, HIP 41389, HIC 41389, CCDM J08267+2432) is a trinary star[8][9] in the constellation Cancer. Two of its components' (24 Cancri A and 24 Cancri BC) apparent magnitudes are 6.51 and 7.81.

24 Cancri A

24 Cancri A (24 Cnc A, HD 71152, HR 3312, CCDM J08267+2432A) is an F0III-type star located at 08h 26m 39.79210s +24° 32′ 03.0153″ .[9][10][11]

24 Cancri B

24 Cancri B (24 Cnc B, HD 71153, HR 3313) or CCDM J08267+2432BC (A 1746BC, ADS 6811 BC, IDS 08207+2452 BC, WDS J08267+2432BC) is a close binary component of 24 Cancri, composed of CCDM J08267+2432B and CCDM J08267+2432C. It is recorded as being of F7V-type located at 08h 26m 40.06s +24° 32′ 06.6″ .[12][13]

CCDM J08267+2432B

CCDM J08267+2432B (A 1746B, ADS 6811 B, IDS 08207+2452 B, WDS J08267+2432B)

CCDM J08267+2432C

CCDM J08267+2432C (A 1746C, ADS 6811 C, IDS 08207+2452 C, WDS J08267+2432C)

References

  1. ^ a b c Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
  2. ^ a b c d "* 24 Cnc B". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 3 June 2017.
  3. ^ "HR 3312". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 3 June 2017.
  4. ^ a b Mermilliod, J.-C. (1986). "Compilation of Eggen's UBV data, transformed to UBV (unpublished)". Catalogue of Eggen's UBV data. Bibcode:1986EgUBV........0M.
  5. ^ 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.
  6. ^ a b c van Leeuwen, F.; et al. (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.
  7. ^ Docobo, J. A.; Ling, J. F. (2009). "Binary Stars with Components of Solar Type: 25 Orbits and System Masses". The Astronomical Journal. 138 (4): 1159. Bibcode:2009AJ....138.1159D. doi:10.1088/0004-6256/138/4/1159.
  8. ^ SIMBAD, 24 Cancri (accessed 4/4/2012)
  9. ^ a b SIMBAD, HD 71152 (accessed 4/4/2012)
  10. ^ SIMBAD, CCDM J08267+2432A (accessed 4/4/2012)
  11. ^ NASA Exoplanet Archive, 24 Cancri A (accessed 4/4/2012)
  12. ^ SIMBAD, CCDM J08267+2432BC (accessed 4/4/2012)
  13. ^ NASA Exoplanet Archive, 24 Cancri B (accessed 4/4/2012)


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