IX Carinae

Short description: Star in the constellation Carina

IX Carinae

250px
A visual band light curve for IX Carinae, plotted from ASAS data[1]

Observation data
Equinox J2000.0]] (ICRS)
Constellation | Carina
Right ascension |  10h 50m 26.300s[2]
Declination | −59° 58′ 56.57″[2]
Apparent magnitude (V) | 7.2 - 8.5[3] or 6.87 - 7.9[4]
Characteristics
Spectral type | M2Iab[3]
Variable type | SRc[3][4]
Astrometry
Radial velocity (Rv)| 0.90±1.8[5] km/s
Proper motion (μ)|  RA: −6.466[2] mas/yr
Dec.: +2.322[2] mas/yr
Parallax (π)| 0.4436 ± 0.0220[2] mas
Distance| 7,400 ± 400 ly
(2,300 ± 100 pc)
Details
Mass| 13[6] M☉
Radius| 603[7] R☉
Luminosity| 61,660[7] L☉
Temperature| 3,660±170[8] K
Other designations

IX Car, CD−59°3368, CPD−59°2775, GSC 08626-01670, HD 94096, HIP 52991, IRAS 10484−5943, 2MASS J10502630−5958563, PPM 339497, SAO 238523, TYC 8626-1670-1

Database references
SIMBAD| data

IX Carinae (IX Car) is a red supergiant and pulsating variable star of spectral type M2Iab in the constellation Carina. It is a member of the Carina OB1 association along the Carina Nebula.

In 1948, Daniel Joseph Kelly O'Connell announced that the star is a variable star.[9] IX Carinae is a semiregular variable star, but its properties are poorly defined. Different sources give its brightness range as magnitude 7.2 to 8.5.[3] or 6.87 to 7.9.[4] The International Variable Star Index finds a period of approximately 384 days from ASAS-3 and visual observations, but also gives a possible period of 108 days.[4] Another analysis finds a primary period of 408±50 d and a longer secondary period of 4,400±2,000 d.[10][3]

The physical characteristics of IX Carinae are also only known approximately, partly because of an uncertain distance. The effective temperature is around 3,600 K,[11][8] while its bolometric luminosity is between 34,000 L☉[12] and 134,000 L☉.[11] It is one of the largest stars with a radius of approximately 600 R☉ (420,000,000 km; 2.8 astronomical unit|au). If placed at the center of the Solar System, it would extend close to the orbit of the outer asteroid belt.[7]

IX Carinae has been listed as a candidate supernova close enough to Earth that pre-collapse neutrinos could be detected, allowing for observations of the star to be made from before the supernova explosion.[13]

## References

1. ↑ "ASAS All Star Catalogue". The All Sky Automated Survey. http://www.astrouw.edu.pl/asas/?page=aasc.
2. ↑ 2.0 2.1 2.2 2.3 2.4 Vallenari, A. et al. (2022). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy & Astrophysics. doi:10.1051/0004-6361/202243940 Gaia DR3 record for this source at VizieR.
3. ↑ 3.0 3.1 3.2 3.3 3.4 "GCVS Query=IX Car". General Catalogue of Variable Stars @ Sternberg Astronomical Institute, Moscow, Russia. http://www.sai.msu.su/gcvs/cgi-bin/search.cgi?search=IX+Car.
4. ↑ 4.0 4.1 4.2 4.3 "IX Carinae". AAVSO. https://www.aavso.org/vsx/index.php?view=detail.top&oid=5994.
5. ↑ Gontcharov, G. A.; Massey, Philip; Olsen, K. A. G.; Plez, Bertrand; Josselin, Eric; Maeder, Andre; Meynet, Georges (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters 32 (11): 759–771. doi:10.1134/S1063773706110065. Bibcode: 2006AstL...32..759G.
6. ↑ Kervella, Pierre; Arenou, Frédéric; Thévenin, Frédéric (2022). "Stellar and substellar companions from Gaia EDR3". Astronomy & Astrophysics 657: A7. doi:10.1051/0004-6361/202142146. Bibcode: 2022A&A...657A...7K.
7. ↑ 7.0 7.1 7.2 Healy, Sarah; Horiuchi, Shunsaku; Molla, Marta Colomer; Milisavljevic, Dan; Tseng, Jeff; Bergin, Faith; Weil, Kathryn; Tanaka, Masaomi (2024-03-23). "Red Supergiant Candidates for Multimessenger Monitoring of the Next Galactic Supernova". Monthly Notices of the Royal Astronomical Society 529 (4): 3630–3650. doi:10.1093/mnras/stae738. ISSN 0035-8711. Bibcode: 2024MNRAS.529.3630H.
8. ↑ 8.0 8.1 Messineo, M.; Brown, A. G. A. (2019). "A Catalog of Known Galactic K-M Stars of Class I Candidate Red Supergiants in Gaia DR2". The Astronomical Journal 158 (1): 20. doi:10.3847/1538-3881/ab1cbd. Bibcode: 2019AJ....158...20M.
9. ↑ O'Connell, D (February 1948). "New Variable Stars (Fourth List)". Publications of the Riverview College Observatory 2: 68. Bibcode: 1948PRCO....2...68O. https://articles.adsabs.harvard.edu/pdf/1948PRCO....2...68O. Retrieved 13 December 2024.
10. ↑ Percy, John R.; Sato, Hiromitsu (2009). "Long Secondary Periods in Pulsating Red Supergiant Stars". Journal of the Royal Astronomical Society of Canada 103 (1): 11. Bibcode: 2009JRASC.103...11P.
11. ↑ 11.0 11.1 Dorn-Wallenstein, Trevor Z.; Levesque, Emily M.; Neugent, Kathryn F.; Davenport, James R. A.; Morris, Brett M.; Gootkin, Keyan (2020). "Short Term Variability of Evolved Massive Stars with TESS II: A New Class of Cool, Pulsating Supergiants". The Astrophysical Journal 902 (1): 24. doi:10.3847/1538-4357/abb318. Bibcode: 2020ApJ...902...24D.
12. ↑ Brown, A. G. A. (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics 616: A1. doi:10.1051/0004-6361/201833051. Bibcode: 2018A&A...616A...1G. Gaia DR2 record for this source at VizieR.
13. ↑ Nakamura, Ko; Horiuchi, Shunsaku; Tanaka, Masaomi; Hayama, Kazuhiro; Takiwaki, Tomoya; Kotake, Kei (2016). "Multimessenger signals of long-term core-collapse supernova simulations: Synergetic observation strategies". Monthly Notices of the Royal Astronomical Society 461 (3): 3296. doi:10.1093/mnras/stw1453. Bibcode: 2016MNRAS.461.3296N.

* v
* t
* e

Carina constellation

Stars
(list)|

| Bayer|

* α (Canopus)
* β (Miaplacidus)
* ε (Avior)
* η
* θ
* ι (Aspidiske)
* υ
* χ
* ω

|

Variable|

* R
* S
* T (not variable)
* U
* V
* X
* Y
* RT
* UX
* VY
* WZ
* XY
* XZ
* YZ
* AG
* BO
* CK
* CR
* DW
* EM
* EY
* GG
* GH
* GL
* GZ
* HH
* HR
* IW
* IX
* OY
* PP (p)
* QU
* QX
* QY
* QZ
* V337 (q)
* V341
* V343 (d)
* V344 (f)
* V345 (E)
* V348
* V357 (a)
* V364
* V368
* V369
* V370
* V371 (z2)
* V372
* V374
* V375
* V376 (b1)
* V381
* V382 (x)
* V386
* V390
* V392
* V398
* V399 (P)
* V403
* V409
* V414
* V415 (A)
* V428
* V430
* V431
* V448 (O)
* V450
* V460
* V461
* V469
* V473
* V478
* V482
* V486
* V487
* V492
* V495
* V507
* V514
* V518
* V519
* V520 (w)
* V522
* V524
* V528
* V532
* V533 (y)
* V535
* V557
* V560
* V596
* V640
* V655

HR|

* 2278
* 2400
* 2416
* 2435 (N)
* 2515
* 2523
* 2524
* 2592
* 2634
* 2638
* 2652
* 2661
* 2698
* 2754
* 2767
* 2813
* 2815
* 2862
* 2884
* 2892
* 2925
* 2934 (Q)
* 2941
* 3006
* 3012
* 3031
* 3056
* 3062
* 3070
* 3100
* 3105
* 3120
* 3133
* 3138
* 3139
* 3152
* 3156
* 3159 (D)
* 3161
* 3180
* 3217
* 3218
* 3220 (B)
* 3260 (C)
* 3274
* 3293
* 3298
* 3368
* 3414 (e2)
* 3415 (e1)
* 3432
* 3443
* 3455
* 3471
* 3489
* 3536
* 3549
* 3560
* 3571 (c)
* 3598 (b2)
* 3604
* 3622
* 3632
* 3643 (G)
* 3663 (i)
* 3673
* 3691
* 3693
* 3696 (g)
* 3712
* 3720
* 3721
* 3728 (k)
* 3740
* 3742
* 3752
* 3761
* 3776
* 3777
* 3783
* 3813
* 3821 (H)
* 3825 (h)
* 3856 (m)
* 3863
* 3864
* 3884 (l)
* 3887
* 3913
* 3914
* 3944
* 3957
* 3960
* 3966
* 3967
* 3971
* 3995
* 4002
* 4018
* 4022
* 4025 (M)
* 4043
* 4065
* 4089 (L)
* 4091
* 4095
* 4102 (I)
* 4105
* 4114 (s)
* 4115
* 4120
* 4128
* 4138 (K)
* 4142
* 4144
* 4151
* 4159 (r)
* 4164 (t1)
* 4177 (t2)
* 4179
* 4186
* 4204
* 4205
* 4211
* 4212
* V213
* 4217
* 4219
* 4220
* 4222
* 4226
* 4239
* 4257 (u)
* 4262
* 4266
* 4279
* 4290
* 4323
* 4325 (z1)
* 4326
* 4329
* 4349
* 4355
* 4361
* 4384

HD|

* 49219
* 51608
* 53143
* 54967
* 63765
* 65216
* 79699
* 81896
* 82458
* 84046
* 89805
* 90074
* 90657
* 91094
* 92399
* 92536
* 93129A
* 93250
* 93403
* 93645
* 93695
* 93738
* 93739
* 93843
* 94275
* 94305
* 94491
* 95122
* 96088
* 97950
* 98025

Other|

* BPM 6502
* CPD−57° 2874
* CPD−59° 2628
* CPD−59° 2635
* DEN 0817−6155
* 1E 1048-59
* FO 15
* He 2-38
* Innes' star
* LHS 288
* NGC 3603-A1
* NGC 3603-B
* NGC 3603-C
* OGLE-TR-111
* OGLE-TR-113
* OGLE-TR-122
* OGLE-TR-123
* OGLE-TR-132
* OGLE-TR-182
* OGLE-TR-211
* OGLE2-TR-L9
* PSR J1048-5832
* PSR J1119-6127
* 2S 0921-630
* Sher 25
* SS73 17
* Tr 16-104
* WR 16
* WR 18
* WR 20a
* WR 21a
* WR 22
* WR 23
* WR 24
* WR 25
* WR 30
* WR 30a
* WR 31a
* WR 40
* WR 42e
* AWI0005x3s
* WRA 751

Star
clusters|

| Association|

* Carina OB1
* Carina OB2

|

Open|

* Collinder 228
* IC 2602
* NGC 2516
* NGC 2609
* NGC 3036
* NGC 3114
* NGC 3247
* NGC 3255
* NGC 3293
* NGC 3324
* NGC 3496
* NGC 3519
* NGC 3532
* NGC 3572
* NGC 3590
* NGC 3603
* Trumpler 14
* Trumpler 15
* Trumpler 16
* Westerlund 2

Globular|

* NGC 2808

Nebulae|

| H II|

* Carina Nebula
* NGC 3199
* NGC 3576
* NGC 3579
* NGC 3581
* NGC 3582
* NGC 3584
* NGC 3586
* RCW 49

|

Reflection|

* Homunculus Nebula
* IC 2220
* NGC 3503

Planetary|

* He 2-36
* Hen 2-47
* IC 2448
* IC 2501
* IC 2553
* NGC 2867
* NGC 3211

SNR|

* G290.1-0.8

Pulsar wind|

* IGR J11014−6103

Galaxies|

| NGC|

* 2191
* 2369
* 2369A
* 2369B
* 2381
* 2417
* 2502
* 2640
* 2714
* 2788
* 2822
* 2836
* 2842
* 2887
* 3059
* 3136
* 3136A
* 3136B

|

Other|

* Carina Dwarf Spheroidal Galaxy

Galaxy
clusters|

* Abell 3391
* Abell 3395
* Bullet Cluster

Other|

* GRB 000131
* GRB 080916C

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Original source: https://en.wikipedia.org/wiki/IX Carinae. Read more

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Retrieved from "https://handwiki.org/wiki/index.php?title=Astronomy:IX_Carinae&oldid=3936705"
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*[Dec.:]: Declination
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