Star in the constellation Lynx

27 Lyncis  Observation data
Epoch J2000 Equinox J2000

Constellation | Lynx
Right ascension | 08h 08m 27.44632s[1]
Declination | +51° 30′ 24.0055″[1]
Apparent magnitude (V) | 4.78[2]
Characteristics
Evolutionary stage | main sequence
Spectral type | A2 V[3]
B−V color index | 0.048±0.006[2]
Astrometry
Radial velocity (Rv)| +11.0±4.2[2] km/s
Proper motion (μ)|  RA: −60.95[1] mas/yr
Dec.: −3.11[1] mas/yr
Parallax (π)| 13.04 ± 0.31 mas[1]
Distance| 250 ± 6 ly
(77 ± 2 pc)
Absolute magnitude (MV)| 0.36[2]
Details
Mass| 2.24[4] M☉
Luminosity| 65.41[2] L☉
Surface gravity (log g)| 3.96[4] cgs
Temperature| 10,014±340[4] K
Rotational velocity (v sin i)| 183[4] km/s
Age| 157[4] Myr
Other designations

27 Lyn, BD+51°1391, FK5 307, HD 67006, HIP 39847, HR 3173, SAO 26687, WDS J08085+5130A[5]

Database references
SIMBAD| data

27 Lyncis is a single[6] star in the northern constellation of Lynx. It is visible to the naked eye as a faint, white-hued star with an apparent visual magnitude of 4.78.[2] This object is located around 250 light years away from the Sun, as determine from parallax measurements.[1] It is moving further from the Sun with a heliocentric radial velocity of +11 km/s.[2]

This is an ordinary A-type main-sequence star with a stellar classification of A2 V,[3] which indicates it is generating energy through hydrogen fusion at its core. It is 157[4] million years old and is spinning with a projected rotational velocity of 183.[4] The star has 2.24[4] times the mass of the Sun and is radiating 65[2] times the Sun's luminosity from its photosphere at an effective temperature of 10,014 K.[4] X-ray emission is being detected near these coordinates, which may be coming from an undetected companion or a background source.[7]

## References[edit]

1. ^ a b c d e f 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.
2. ^ a b c d e f g h 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, S2CID 119257644.
3. ^ a b Cowley, A.; et al. (April 1969), "A study of the bright A stars. I. A catalogue of spectral classifications", Astronomical Journal, 74: 375–406, Bibcode:1969AJ.....74..375C, doi:10.1086/110819.
4. ^ a b c d e f g h i David, Trevor J.; Hillenbrand, Lynne A. (2015), "The Ages of Early-Type Stars: Strömgren Photometric Methods Calibrated, Validated, Tested, and Applied to Hosts and Prospective Hosts of Directly Imaged Exoplanets", The Astrophysical Journal, 804 (2): 146, arXiv:1501.03154, Bibcode:2015ApJ...804..146D, doi:10.1088/0004-637X/804/2/146, S2CID 33401607.
5. ^ "27 Lyn". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2019-06-06.`{{cite web}}`: CS1 maint: postscript (link)
6. ^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), "A catalogue of multiplicity among bright stellar systems", Monthly Notices of the Royal Astronomical Society, 389 (2): 869–879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111/j.1365-2966.2008.13596.x, S2CID 14878976.
7. ^ De Rosa, R. J.; et al. (July 2011), "The Volume-limited A-Star (VAST) survey - I. Companions and the unexpected X-ray detection of B6-A7 stars", Monthly Notices of the Royal Astronomical Society, 415 (1): 854–866, arXiv:1103.4363, Bibcode:2011MNRAS.415..854D, doi:10.1111/j.1365-2966.2011.18765.x, S2CID 84181878.

* v
* t
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Constellation of Lynx

* List of stars in Lynx
* Lynx in Chinese astronomy

Stars|

| Bayer|

* α
* ψ10 Aur

|

Flamsteed|

* 1
* 2
* 3
* 4
* 5
* 6
* 7
* 8
* 9
* 10
* 11
* 12
* 13
* 14
* 15
* 17
* 18
* 19
* 20
* 21
* 22
* 23
* 24
* 25
* 26
* 27
* 28
* 29
* 30
* 31 (Alsciaukat)
* 32
* 33
* 34
* 35
* 36
* 38
* 42
* 43
* 44 Cam
* 45 Cam
* 46 Cam
* 48 Cam
* 50 Cam
* 52 Cam
* 54 Cam
* 5 LMi
* 10 UMa
* 19 UMa

Variable|

* R
* T
* U
* Y
* RR
* SW
* SZ
* TT
* TV
* TZ
* UU
* UV
* UX
* UY
* AN
* BE
* BF
* BH
* BK
* CC
* CY
* DD
* DI
* DU

HR|

* 2463
* 2486
* 2561
* 2642
* 2645
* 2721
* 2737
* 2751
* 2776
* 2804
* 2844
* 2894
* 2903
* 2914
* 2915
* 2935
* 2939
* 3028
* 3039
* 3094
* 3106
* 3130
* 3175
* 3181
* 3200
* 3246
* 3258
* 3277
* 3287
* 3292
* 3309
* 3348
* 3351
* 3360
* 3509
* 3511
* 3545
* 3546
* 3580
* 3586
* 3612
* 3625
* 3686
* 3701
* 3809

HD|

* 44061
* 52859
* 58681
* 59721
* 59826
* 63588
* 63630
* 65392
* 67539
* 75898 (Stribor)

Other|

* 3C 171
* GD 98
* Gliese 277
* GJ 1105
* GJ 3421
* HS 0702+6043
* IRC +60169
* J0815+4729
* PG 0859+415
* WASP-13 (Gloas)
* XO-2
* XO-4 (Koit)
* XO-5 (Absolutno)

| Exoplanets|

* 6 Lyncis b
* WASP-13b (Cruinlagh)
* XO-2Nb
* XO-4b (Hämarik)
* XO-5b (Makropulos)

|

| Star clusters|

* NGC 2666

|

| Nebulae|

* Jones-Emberson 1
* Lynx Arc

|

Galaxies|

| NGC|

* 2273
* 2273B
* 2308
* 2315
* 2320
* 2321
* 2322
* 2326
* 2326A
* 2329
* 2330
* 2332
* 2337
* 2340
* 2344
* 2415
* 2424
* 2426
* 2429
* 2429A
* 2429B
* 2431
* 2444
* 2445
* 2446
* 2456
* 2457
* 2458
* 2461
* 2462
* 2463
* 2468
* 2469
* 2472
* 2473
* 2474
* 2475
* 2476
* 2484
* 2488
* 2493
* 2495
* 2497
* 2500
* 2505
* 2518
* 2519
* 2521
* 2524
* 2528
* 2532
* 2534
* 2537
* 2537A
* 2541
* 2543
* 2549
* 2552
* 2638
* 2649
* 2668
* 2683
* 2691
* 2704
* 2712
* 2719
* 2719A
* 2724
* 2746
* 2755
* 2759
* 2770
* 2776
* 2778
* 2779
* 2780
* 2782
* 2785
* 2793
* 2798
* 2799
* 2823
* 2825
* 2826
* 2827
* 2828
* 2829
* 2830
* 2831
* 2832
* 2833
* 2834
* 2838
* 2839
* 2840
* 2844
* 2852
* 2853
* 2860

|

Other|

* APM 08279+5255
* IC 2233
* UGC 4904

| Galaxy clusters|

* 2XMM J083026+524133
* Abell 569
* Abell 576
* Lynx Supercluster
* NGC 2841 group

|

| Astronomical events|

* SN 2007uy
* SN 2008D

|

Category
*[RA:]: Right Ascension
*[Dec.:]: Declination
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