Liste Brauner Zwerge

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(Weitergeleitet von 2MASS J12154432-3420591)

In dieser Liste sind einige Braune Zwerge verzeichnet.

Um Sterne kreisende Braune Zwerge

(Quelle: [1])

Stern Rektaszension Deklination Spektral-
klasse
Brauner Zwerg Masse
(MJ)
Umlaufzeit
(d)
Große Halbachse
(AE)
Exzen-
trizität
Bemerkungen
54 Piscium 00h 39m 21,8s 2211501.7+21° 15′ 01.7″ K0 V 54 Piscium B 50 ? ? ? Zentralstern wird zusätzlich auch noch von einem Exoplaneten umrundet
GJ 1048 02h 36m 00,8s 1766883.2−23° 31′ 16.8″ K2 V GJ 1048 B ? ? ? ?
BD −4° 782 4190904h 19m 09s 1957495−4° 25′ 05″ K5 V BD −4° 782 B 21 219,76 0,7 ?
Gliese 229 6103506h 10m 35s 1487858−51° 21′ 42″ M1 V Gliese 229 B 40 ? 40 ? erster zweifelsfrei nachgewiesener Brauner Zwerg
G 196-3 10042210h 04m 22s 2502323+50° 23′ 23″ M2.5 V G 196-3 B 25 ? 300 ?
HD 89707 10205010h 20m 50s 1847152.3−15° 28′ 47.7″ G1 V HD 89707 B ? ? ? ?
HD 98230 11h 18m 12,5s 2313215+31° 32′ 15″ F8.5 V HD 98230 B 37 5,364 0,06 ?
HD 168443 18h 20m 03,9s 1906455.4−9° 35′ 44.6″ G6 HD 168443 C 18 2,91 ? ?
15 Sagittae 20h 04m 06,2s 2170412.6+17° 04′ 12.6″ G1 V 15 Sagittae B 65 ? 14 ?
HD 202206 21h 14m 57,8s 1794279.9−20° 57′ 20.1″ G6 V HD 202206 B 17 276 0,83 ?
Wolf 940 21h 46m 38,83s 1998961.3−0° 10′ 38.7″ T8,5 Wolf 940B 20–30 6574500 440 ?
Epsilon Indi 22h 03m 21,7s 1435290.5−56° 47′ 09.5″ K4 V Epsilon Indi Ba 47 359,3 0,99 ?
Epsilon Indi Bb 28 780,64 1,7 ?
Kappa Andromedae 23h 40m 24,5s 2442000.2+44° 20′ 0.2″ B9 IVn Kappa Andromedae b 50 ? 55 ?

Braune Zwerge, die keine Sterne umkreisen

(Quelle: [1])

Brauner Zwerg Rektaszension Deklination Sternbild Scheinbare J-Helligkeit / mag Spektralklasse Bemerkungen
2MASS J00001354+2554180 00h 00m 13,5s 2255418+25° 54′ 18″ Peg 15,06 + 0,04 T 4.5
ULAS J002422.94+002247.9 00h 24m 22,9s 2002247+0° 22′ 47″ Psc   T 4.5
ULAS J003402.77-005206.7 00h 34m 02,7s 1994794−0° 52′ 06″ Cet   T 8.5
2MASS J00345157+0523050 00h 34m 51,57s 2052305.5+5° 23′ 05.5″ Psc   T 6.5
2MASS J00501994-3322402 00h 50m 19,9s 1667760−33° 22′ 40″     T 7
CFBDS J005910.90−011401.3 00h 59m 10,9s 1988599−1° 14′ 01″     T 9
ULAS J013117.53−003128.6 01h 31m 17,53s 1996871.4−0° 31′ 28.6″ Cet   T 3
ULAS J013939.77+004813.8 01h 39m 39,8s 2004814+0° 48′ 14″     T7.5 außergewöhnlich tiefer J−H-Index von ca. −0,7
2MASS J01514155+1244300 15141.5501h 51m 41.55s 2124430+12° 44′ 30.0″ Ari   T 1
ULAS J020336.94−010231.1 02h 03m 36,94s 1989768.9−1° 02′ 31.1″ Psc 18,05 ± 0,05 T5
SDSS J020742.48+000056.2 02h 07m 42,9s 2000056+0° 00′ 56″ Cet 16,73 ± 0,01 T 4.5
ULAS J022200.43−002410.5 02h 22m 00,43s 1997589.5−0° 24′ 10.5″ Cet 18,71 ± 0,02 T5
IfA 0230-Z1 02h 26m 37,6s 2005155+0° 51′ 55″ Cet 18 T3
2MASS J02431371-2453298 24313.7102h 43m 13.71s 1754670.2−24° 53′ 29.8″     T 6V
SDSS J024749.90−163112.6 24749.7802h 47m 49.78s 1836886.8−16° 31′ 13.2″     T 2
T0 + T7
Kandidat für Doppelsystem
2MASS J03202839-0446358 B 03h 20m 28,4s 1955364−4° 46′ 36″     T5 ± 1
WISE 0350−5658
WISE J035000.32−565830.2
03h 50m 00,3s 1434170−56° 58′ 30″ Ret > 22,8 Y1 einer der nächsten bekannten Braunen Zwerge
SDSS J032553.17+042540.1 03h 25m 53,2s 2042540+4° 25′ 40″ Tau 15,9 T5.5 (IR)
2MASS J03480772-6022270 34807.7203h 48m 07.72s 1397773−60° 22′ 27.0″     T 7
Roque 25 34830.603h 48m 30.6s 2224450+22° 44′ 50″     L 
ULAS J034832.97−001258.3 03h 48m 32,97s 1998741.7−0° 12′ 58.3″     T
SDSS J035104.37+481046.8 3510403h 51m 04s 2481080+48° 10.8′ 0″ Per ca. 15,9 ca. T1 Chiu et al., 2006
2MASS J04070885+1514565 40708.8504h 07m 08.85s 2151456.5+15° 14′ 56.5″     T 5
2MASS J04151954-0935066 41519.5404h 15m 19.54s 1906493.4−9° 35′ 06.6″     T 8V
2MASS J05103520−4208140 05h 10m 35,20s 1579186−42° 08′ 14.0″ Col   T5
2MASS J05160945-0445499 51609.4505h 16m 09.45s 1955450.1−4° 45′ 49.9″     T 5.5
2MASS J05591914-1404488 55919.1405h 59m 19.14s 1859551.2−14° 04′ 48.8″     T 4.5
2MASS J06020638+4043588 06h 02m 06,38s 2404358.8+40° 43′ 58.8″ Aur ca. 15,5 T4.5 Burgasser et al., 2007
LSR 0602+3910 06h 02m 30,5s 2391059+39° 10′ 59″ Aur 12,29 ± 0,03 L1
2MASS J07271824+1710012 72718.2407h 27m 18.24s 2171001.2+17° 10′ 01.2″     T 7
2MASS J07290002-3954043 72900.0207h 29m 00.02s 1604595.7−39° 54′ 04.3″     T 8
SDSS J073922.26+661503.5 07h 39m 22,3s 2661504+66° 15′ 04″     T1.5
2MASS J07414920+2351275 74149.207h 41m 49.20s 2235127.5+23° 51′ 27.5″     T 5
2MASS J07420130+2055198 74201.307h 42m 01.30s 2205519.8+20° 55′ 19.8″     T 5
2MASS J07554795+2212169 75547.9507h 55m 47.95s 2221216.9+22° 12′ 16.9″     T 5
2MASS J07584037+3247245 75840.3707h 58m 40.37s 2324724.5+32° 47′ 24.5″     T 2
ULAS J082327.46+002424.4 08h 23m 27,46s 2002424.4+0° 24′ 24.4″ Hya 18,57 ± 0,05 T4 Pinfield et al., 2008[2]
ULAS J082707.67-020408.2 82707.6708h 27m 07.67s 1979591.8−2° 04′ 08.2″     T 5.5
2MASS J08304878+0128311 83048.7808h 30m 48.78s 2012831.1+1° 28′ 31.1″     T 4.5
SDSS J083717.22-000018.3 83717.1808h 37m 17.18s 1999982.1−0° 00′ 17.9″     T 0.5
ULAS J083756.19-004156.0 83756.1908h 37m 56.19s 1995844−0° 41′ 56.0″     T 3
2MASS J08583467+3256275 85834.6708h 58m 34.67s 2325627.5+32° 56′ 27.5″     T 1
ULAS J085910.69+101017.1 85910.6908h 59m 10.69s 2101017.1+10° 10′ 17.1″ Cnc 17,88 ± 0,06 T 7 Pinfield et al., 2008; niedrige Helligkeit im Y-Band, ungewöhnlich roter H−K-Farbindex[2]
ULAS J090116.23-030635.0 90116.2309h 01m 16.23s 1969365−3° 06′ 35.0″     T 7.5
2MASS J09090085+6525275 90900.8509h 09m 00.85s 2652527.5+65° 25′ 27.5″ UMa 16,03 ± 0,09 T 1.5 keine besondere Variabilität bei Untersuchung von Hubble-Daten festgestellt[3]; Identifikation: Chiu et al., 2006
2MASS J09201223+3517429 92012.2309h 20m 12.23s 2351742.9+35° 17′ 42.9″     T 0p
2MASS J09261537+5847212 92615.3709h 26m 15.37s 2584721.2+58° 47′ 21.2″     T 4.5
2MASS J09373487+2931409 93734.8709h 37m 34.87s 2293140.9+29° 31′ 40.9″     T 6
ULAS J093829.28−001112.6 09h 38m 29,28s 1998887.4−0° 11′ 12.6″ Hya 18,53 ± 0,06 T4.5 Pinfield et al., 2008[2]
2MASS J09393548-2448279 93935.4809h 39m 35.48s 1755172.1−24° 48′ 27.9″     T 8
ULAS J093951.04+001653.6 09h 39m 51,04s 2001653.6+0° 16′ 53.6″ Hya 17,96 ± 0,03 T5.5 Pinfield et al., 2008[2]
ULAS J094806.06+064805.0 94806.0609h 48m 06.06s 2064805+6° 48′ 05.0″     T 7
2MASS J09490860-1545485 94908.609h 49m 08.60s 1845451.5−15° 45′ 48.5″     T 2
ULAS J095829.86−003932.0 95829.8609h 58m 29.86s 1996068−0° 39′ 32.0″ Sex 18,95 ± 0,06 T 5.5 Pinfield et al., 2008[2]
CFBDS J095914+023655 9591409h 59m 14s 2023655+2° 36′ 55″     T 3
CFBDS J100113+022622 10011310h 01m 13s 2022622+2° 26′ 22″ Sex ca. 17,9 T 5 µα∙cos(δ) = −90,21 ± 13,7 mas/a
µδ = +49,41 ± 14,23 mas/a
Entdeckung: Delorme et al., 2008
2MASS J10073369−4555147 10h 07m 33,69s 1544485.3−45° 55′ 14.7″ UMa   T5
ULAS J100759.90-010031.1 100759.910h 07m 59.90s 1989968.9−1° 00′ 31.1″     T 5.5
ULAS J101821.78+072547.1 101821.7810h 18m 21.78s 2072547.1+7° 25′ 47.1″     T 5
2MASS J10210969-0304197 102109.6910h 21m 09.69s 1969580.3−3° 04′ 19.7″     T 3
Teide 1 3471803h 47m 18.0s 2242231+24° 22′ 31″     M 8
SDSS J011912.22+240331.6 11912.0701h 19m 12.07s 2240331.7+24° 03′ 31.7″     T 2
2MASS J03061159-3647528 103931.3710h 39m 31.37s 2325626.3+32° 56′ 26.3″     T 1
2MASS J10475385+2124234 104753.8510h 47m 53.85s 2212423.4+21° 24′ 23.4″     T 6.5V
SDSS J104829.21+091937.8 10h 48m 29,2s 2091938+9° 19′ 38″ Leo 16,4 T2.5
2MASS J10521350+4422559 105213.510h 52m 13.50s 2442255.9+44° 22′ 55.9″     T 0.5
SDSS J110454.25+554841.4 11h 04m 54,3s 2554841+55° 48′ 41″ UMa   T 0
2MASS J11061197+2754225 110611.9711h 06m 11.97s 2275422.5+27° 54′ 22.5″     T 2.5
2MASS J11101001+0116130 111010.0111h 10m 10.01s 2011613+1° 16′ 13.0″     T 5.5
2MASS J11145133-2618235 111451.3311h 14m 51.33s 1738176.5−26° 18′ 23.5″     T 7.5
2MASS J11220826-3512363 112208.2611h 22m 08.26s 1648763.7−35° 12′ 36.3″     T 2
2MASS J11463449+2230527 114634.4911h 46m 34.49s 2223052.7+22° 30′ 52.7″     T 3
ULAS J115038.79+094942.9 11h 50m 38,8s 2094943+9° 49′ 43″ Vir 18,68 ± 0,04   ungewöhnliches Spektrum, möglicherweise ein Objekt hoher Metallizität und geringer Oberflächenschwere; Pinfield et al., 2008[2]
SDSS J115700.50+061105.2 115700.4911h 57m 00.49s 2061105.2+6° 11′ 05.2″     T 1.5
ULAS J115759.04+092200.7 115759.0411h 57m 59.04s 2092200.7+9° 22′ 00.7″     T 2.5
SDSS J120602.51+281328.7 120602.512h 06m 02.5s 2281329+28° 13′ 29″     T 3
2MASS J12095613−1004008 12h 09m 56,1s 1899599−10° 04′ 01″     ca. T2 + T7
2MASS J12144089+6316434 121440.8912h 14m 40.89s 2631643.4+63° 16′ 43.4″     T 3.5
2MASS J12154432−3420591 12h 15m 44,32s 1657940.9−34° 20′ 59.1″ Hya ca. 16,2 T4.5
2MASS J12165918+3003054 12h 16m 59,2s 2300305.4+30° 03′ 05.4″ Com 16,89 L3.5
2MASS J12171110-0311131 121711.112h 17m 11.10s 1968886.9−3° 11′ 13.1″     T 7V
2MASS J12255432-2739466 122554.3212h 25m 54.32s 1726053.4−27° 39′ 46.6″     T 6
2MASS J12314753+0847331 123147.5312h 31m 47.53s 2084733.1+8° 47′ 33.1″     T 5.5
2MASS J12373919+6526148 123739.1912h 37m 39.19s 2652614.8+65° 26′ 14.8″     T 6.5V
SDSS J125011.65+392553.9 12h 50m 11,7s 2392554+39° 25′ 54″ CVn 16,5 T4
SDSSp J125453.90−012247.4 12h 54m 53,9s 1987753−1° 22′ 47″ Vir 14,9 T2
ULAS J130303.54+001627.7 130303.5413h 03m 03.54s 2001627.7+0° 16′ 27.7″     T 5.5
ULAS J131508.42+082627.4 131508.4213h 15m 08.42s 2082627.4+8° 26′ 27.4″     T 7.5
2MASS J13243559+6358284 132435.5913h 24m 35.59s 2635828.4+63° 58′ 28.4″     T 2
2MASS J13464634-0031501 134646.3413h 46m 46.34s 1996849.9−0° 31′ 50.1″     T 7
SDSS J135852.68+374711.9 13h 58m 52,7s 2374712+37° 47′ 12″ CVn 16,2 T4.5
SDSS J140255.66+080055.2 14h 02m 55,7s 2080055+8° 00′ 55″ Boo   T1.5
2MASS J14044941-3159329 140449.4114h 04m 49.41s 1684067.1−31° 59′ 32.9″     T 2.5
SDSS J141530.05+572428.7 14h 15m 30,0s 2572430+57° 24′ 30″ UMa 16,7   vermutlich ein Paar mit einem L- und einem T-Zwerg
2MASS J14353572-0043471 143535.7214h 35m 35.72s 1995652.9−0° 43′ 47.1″     T 6
SDSS J143553.25+112948.6 143553.214h 35m 53.2s 2112949+11° 29′ 49″     T 2
2MASS J14394092+1826369 143940.9214h 39m 40.92s 2182636.9+18° 26′ 36.9″ Boo   L1
SDSS J143945.86+304220.6 14394614h 39m 46s 2304221+30° 42′ 21″ Boo   T 2.5 evtl. Doppelsystem
ULAS J145243.59+065542.9 145243.5914h 52m 43.59s 2065542.9+6° 55′ 42.9″     T 4.5
ULAS J150135.33+082215.2 150135.3315h 01m 35.33s 2082215.2+8° 22′ 15.2″     T 4.5
2MASS J15031961+2525196 150319.6115h 03m 19.61s 2252519.6+25° 25′ 19.6″     T 6
SDSS J150411.63+102718.4 150411.615h 04m 11.6s 2102718+10° 27′ 18″     T 7
ULAS J150547.89+070316.6 150547.8915h 05m 47.89s 2070316.6+7° 03′ 16.6″ Vir 18,96 + 0,03 T 4 Pinfield et al., 2008[2]
SDSS J151114.66+060742.9 15h 11m 14,7s 2060743+6° 07′ 43″ Ser ca. 16,0 vermutl. ca. L5.5 + T5.0 spektroskopisches Paar
2MASS J15160303+0259292 151603.0315h 16m 03.03s 2025929.2+2° 59′ 29.2″     T 0
2MASS J15164306+3053443 151643.0615h 16m 43.06s 2305344.3+30° 53′ 44.3″     T 0.5
2MASS J15203974+3546210 152039.7415h 20m 39.74s 2354621+35° 46′ 21.0″     T 0
2MASS J15210327+0131426 152103.2715h 21m 03.27s 2013142.6+1° 31′ 42.6″     T 2
2MASS J15341711+1615463 153417.1115h 34m 17.11s 2161546.3+16° 15′ 46.3″     T 3.5
2MASS J15344984-2952274 153449.8415h 34m 49.84s 1704772.6−29° 52′ 27.4″     T 6
ULAS J154427.34+081926.6 154427.3415h 44m 27.34s 2081926.6+8° 19′ 26.6″     T 3.5
2MASS J15461461+4932114 15h 46m 14,6s 2493211+49° 32′ 11″ Boo 15,90 ± 0,07 T 2.5 (?) Metchev et al., 2008
2MASS J15462718-3325111 154627.1815h 46m 27.18s 1667488.9−33° 25′ 11.1″     T 5.5
ULAS J154701.84+005320.3 154701.8415h 47m 01.84s 2005320.3+0° 53′ 20.3″     T 5.5
2MASS J15530228+1532369 155302.2815h 53m 02.28s 2153236.9+15° 32′ 36.9″     T 7
2MASS J16150413+1340079 161504.1316h 15m 04.13s 2134007.9+13° 40′ 07.9″     T 6
2MASS J16241436+0029158 162414.3616h 24m 14.36s 2002915.8+0° 29′ 15.8″ Ser   T 6
SDSS J162838.77+230821.1 162838.816h 28m 38.8s 2230821+23° 08′ 21″ Her   T 7
SDSS J163022.92+081822.0 16h 30m 22,9s 2081822+8° 18′ 22″ Her 16,2 T5.5
SDSS J163239.34+415004.3 16h 32m 39,34s 2415004.3+41° 50′ 04.3″ Her 16,87 ± 0,05 T 1
2MASS J16401059+0037213 16h 40m 10,6s 2003721.3+0° 37′ 21.3″ Oph ~17 L0
BDR J1750+3809 17h 50m 01,1s 2380920+38° 09′ 20″ Her 15,2 T6.5 ± 1 kalter Methan-Zwerg mit ungewöhnlich hoher, direkt beobachteter Radio-Emission (Vedantham et al. 2020)

Anderes

(Quelle: [1])

Siehe auch

Einzelnachweise

  1. a b c List of Brown Dwarfs. Abgerufen am 16. Juni 2022.
  2. a b c d e f g Pinfield et al. (2008): Fifteen new T dwarfs discovered in the UKIDSS Large Area Survey; in: Monthly Notices of the Royal Astronomical Society 390(1), S. 304–322
  3. Buenzli et al. (2014): Brown Dwarf Photospheres are Patchy: A Hubble Space Telescope Near-infrared Spectroscopic Survey Finds Frequent Low-level Variability; in: The Astrophysical Journal 782(2)