这份清单包含距离太阳系5秒差距(16.3光年)内所有已知的恒星和棕矮星。除了太阳系之外,目前已知在这个距离内还有56个恒星系统。这些系统共包含60颗进行氢融合的恒星(其中50颗是红矮星)、13颗棕矮星和4颗白矮星。尽管这些天体相对而言都很接近地球,但是只有9颗的视星等小于6.5等,这意味着这些天体只有大约12%是可以用裸眼看见[1]。除了太阳之外,只有三颗是明亮的1等星:南门二(半人马座α星)、天狼星(大犬座α星)、和南河三(小犬座α星)。这些天体全部都位于银河系猎户臂的本地泡。
恒星距离表
# | 名称 | 恒星 类型 |
视星等 | 绝对星等 | 有效温度(±) (K) |
历元J2000.0 | 视差[2](±) (角秒) |
距离[3](±) (光年) |
附加 参考 资料 | ||
---|---|---|---|---|---|---|---|---|---|---|---|
系统 | 恒星 | 赤经 | 赤纬 | ||||||||
太阳系 | 太阳 | style="background:
|
−26.72 | 4.85 | 5,778[4] | — | — | 180° | 0.0000158(3) (大约8光分) |
||
1 | 南门二 (Rigil Kentaurus; Toliman) |
半人马座比邻星(V645 Centauri) | style="background:
|
11.09 | 15.53 | 3,040[5] | 14h 29m 43.0s | −62° 40′ 46″ | 0.768 87(0 29)″[6][7] | 4.2421(16) | [8] |
半人马座αA(HD 128620) | style="background:
|
0.01 | 4.38 | 5,790[5] | 14h 39m 36.5s | −60° 50′ 02″ | 0.747 23(1 17)″[6][9] | 4.3650(68) | |||
半人马座αB(HD 128621) | style="background:
|
1.34 | 5.71 | 5,260[5] | 14h 39m 35.1s | −60° 50′ 14″ | |||||
2 | 巴纳德星(BD+04°3561a) | style="background:
|
9.53 | 13.22 | 3,134(102)[10] | 17h 57m 48.5s | +04° 41′ 36″ | 0.546 98(1 00)″[6][7] | 5.9630(109) | ||
3 | Luhman 16 | WISE 1049-5319A | style="background:
|
10.73 ± 0.03 | 10h 49m 15.57s | −53° 19′ 06″ | 0.496 (37)[11] | 6.52(49) | |||
WISE 1049-5319B | L9/T0? | ||||||||||
3 | 沃夫359(CN Leonis) | style="background:
|
13.44 | 16.55 | 2,800(100)[12] | 10h 56m 29.2s | +07° 00′ 53″ | 0.419 10(2 10)″[6] | 7.7825(390) | ||
4 | 拉兰德21185(BD+36°2147) | style="background:
|
7.47 | 10.44 | 3,400[13] | 11h 03m 20.2s | +35° 58′ 12″ | 0.393 42(0 70)″[6][7] | 8.2905(148) | ||
5 | 天狼星 (大犬座α) |
天狼星A | style="background:
|
−1.43 | 1.47 | 9,940(210)[14] | 06h 45m 08.9s | −16° 42′ 58″ | 0.380 02(1 28)″[6][7] | 8.5828(289) | |
天狼星B | DA2 | 8.44 | 11.34 | 25,000(200)[15] | |||||||
6 | 鲁坦726-8 | 鲁坦 726-8 A(鲸鱼座BL) | style="background:
|
12.54 | 15.40 | 2,670 | 01h 39m 01.3s | −17° 57′ 01″ | 0.373 70(2 70)″[6] | 8.7280(631) | |
鲁坦 726-8 B(鲸鱼座UV) | style="background:
|
12.99 | 15.85 | ~2,600 | |||||||
6.5 | WISE 1541-2250 | Y0 | 21.16±0.36 | 20.99±0.52 | 15h 41m 51.57s | −22° 50′ 25.03″ | 0.351″ ± 0.108″[16] | 9.3 +4.1/–2.2[16] | |||
7 | 罗斯154(V1216 Sagittarii) | style="background:
|
10.43 | 13.07 | 2,700 | 18h 49m 49.4s | −23° 50′ 10″ | 0.336 90(1 78)″[6][7] | 9.6813(512) | ||
8 | 罗斯248(HH Andromedae) | style="background:
|
12.29 | 14.79 | ? | 23h 41m 54.7s | +44° 10′ 30″ | 0.316 00(1 10)″[6] | 10.322(36) | ||
9 | 天苑四(BD−09°697) | style="background:
|
3.73 | 6.19 | 5,100 | 03h 32m 55.8s | −09° 27′ 30″ | 0.309 99(0 79)″[6][7] | 10.522(27) | ||
10 | 拉卡伊9352(CD−36°15693) | style="background:
|
7.34 | 9.75 | 3,340 | 23h 05m 52.0s | −35° 51′ 11″ | 0.303 64(0 87)″[6][7] | 10.742(31) | ||
11 | 罗斯128(FI Virginis) | style="background:
|
11.13 | 13.51 | 2,800 | 11h 47m 44.4s | +00° 48′ 16″ | 0.298 72(1 35)″[6][7] | 10.919(49) | ||
12 | 宝瓶座EZ (GJ 866,鲁坦 789-6) |
EZ Aquarii A | style="background:
|
13.33 | 15.64 | ? | 22h 38m 33.4s | −15° 18′ 07″ | 0.289 50(4 40)″[6] | 11.266(171) | |
EZ Aquarii B | style="background:
|
13.27 | 15.58 | ? | |||||||
EZ Aquarii C | style="background:
|
14.03 | 16.34 | ? | |||||||
13 | 南河三 (小犬座α) |
南河三 A | style="background:
|
0.38 | 2.66 | 6,650 | 07h 39m 18.1s | +05° 13′ 30″ | 0.286 05(0 81)″[6][7] | 11.402(32) | |
南河三 B | DA | 10.70 | 12.98 | 9,700 | |||||||
14 | 天津增二十九 | 61 Cygni A(BD+38°4343) | style="background:
|
5.21 | 7.49 | 4,640 | 21h 06m 53.9s | +38° 44′ 58″ | 0.286 04(0 56)″[6][7] | 11.403(22) | |
61 Cygni B(BD+38°4344) | style="background:
|
6.03 | 8.31 | 4,440 | 21h 06m 55.3s | +38° 44′ 31″ | |||||
15 | Struve 2398 (GJ 725, BD+59°1915) |
Struve 2398 A(HD 173739) | style="background:
|
8.90 | 11.16 | ? | 18h 42m 46.7s | +59° 37′ 49″ | 0.283 00(1 69)″[6][7] | 11.525(69) | |
Struve 2398 B(HD 173740) | style="background:
|
9.69 | 11.95 | ? | 18h 42m 46.9s | +59° 37′ 37″ | |||||
16 | Groombridge 34 (GJ 15) |
Groombridge 34 A(GX Andromedae) | style="background:
|
8.08 | 10.32 | ? | 0h 18m 22.9s | +44° 01′ 23″ | 0.280 59(0 95)″[6][7] | 11.624(39) | |
Groombridge 34 B(GQ Andromedae) | style="background:
|
11.06 | 13.30 | ? | |||||||
17 | 波斯七 (CPD−57°10015) |
Epsilon Indi A | style="background:
|
4.69 | 6.89 | 4,280 | 22h 03m 21.7s | −56° 47′ 10″ | 0.275 84(0 69)″[6][7] | 11.824(30) | |
Epsilon Indi Ba | style="background:
|
>23 | >25 | 1,280 | 22h 04m 10.5s | −56° 46′ 58″ | |||||
Epsilon Indi Bb | style="background:
|
>23 | >25 | 850 | |||||||
18 | 巨蟹座DX(G 51-15) | style="background:
|
14.78 | 16.98 | ? | 08h 29m 49.5s | +26° 46′ 37″ | 0.275 80(3 00)″[6] | 11.826(129) | ||
19 | 天仓五(BD−16°295) | style="background:
|
3.49 | 5.68 | 5,344 | 01h 44m 04.1s | −15° 56′ 15″ | 0.274 39(0 76)″[6][7] | 11.887(33) | ||
20 | GJ 1061(LHS 1565) | style="background:
|
13.09 | 15.26 | ? | 03h 35m 59.7s | −44° 30′ 45″ | 0.272 01(1 30)″[17] | 11.991(57) | [18][19] | |
21 | 鲸鱼座YZ星(LHS 138) | style="background:
|
12.02 | 14.17 | ? | 01h 12m 30.6s | −16° 59′ 56″ | 0.268 84(2 95)″[6][7] | 12.132(133) | ||
22 | 鲁坦星(BD+05°1668) | style="background:
|
9.86 | 11.97 | ? | 07h 27m 24.5s | +05° 13′ 33″ | 0.263 76(1 25)″[6][7] | 12.366(59) | ||
23 | 蒂加登星(SO025300.5+165258) | style="background:
|
15.14 | 17.22 | ? | 02h 53m 00.9s | +16° 52′ 53″ | 0.260 63(2 69)″[17] | 12.514(129) | [19] | |
24 | SCR 1845-6357 | SCR 1845-6357 A | style="background:
|
17.39 | 19.41 | ? | 18h 45m 05.3s | −63° 57′ 48″ | 0.259 45(1 11)″[17] | 12.571(54) | [19] |
SCR 1845-6357 B | style="background: | ? | ? | 950[20] | 18h 45m 02.6s | −63° 57′ 52″ | |||||
25 | 卡普坦星(CD−45°1841) | style="background:
|
8.84 | 10.87 | 3,800 | 05h 11m 40.6s | −45° 01′ 06″ | 0.255 27(0 86)″[6][7] | 12.777(43) | ||
26 | Lacaille 8760(AX Microscopii) | style="background:
|
6.67 | 8.69 | 3,340 | 21h 17m 15.3s | −38° 52′ 03″ | 0.253 43(1 12)″[6][7] | 12.870(57) | ||
27 | Kruger 60 (BD+56°2783) |
Kruger 60 A | style="background:
|
9.79 | 11.76 | 3,180 | 22h 27m 59.5s | +57° 41′ 45″ | 0.248 06(1 39)″[6][9] | 13.149(74) | |
Kruger 60 B(DO Cephei) | style="background:
|
11.41 | 13.38 | 2,890 | |||||||
28 | DEN 1048-3956 | style="background:
|
17.39 | 19.37 | ? | 10h 48m 14.7s | −39° 56′ 06″ | 0.247 71(1 55)″[17] | 13.167(82) | [21][22] | |
29 | 罗斯614 (V577 Monocerotis, GJ 234) |
Ross 614A(LHS 1849) | style="background:
|
11.15 | 13.09 | ? | 06h 29m 23.4s | −02° 48′ 50″ | 0.244 34(2 01)″[6][9] | 13.349(110) | |
Ross 614B(LHS 1850) | style="background:
|
14.23 | 16.17 | ? | |||||||
30 | Gl 628(Wolf 1061, BD−12°4523) | style="background:
|
10.07 | 11.93 | ? | 16h 30m 18.1s | −12° 39′ 45″ | 0.236 01(1 67)″[6][7] | 13.820(98) | ||
31 | 范马南星(Gl 35, LHS 7) | DZ7 | 12.38 | 14.21 | ? | 00h 49m 09.9s | +05° 23′ 19″ | 0.231 88(1 79)″[6][7] | 14.066(109) | ||
32 | 格利泽1(CD−37°15492) | style="background:
|
8.55 | 10.35 | ? | 00h 05m 24.4s | −37° 21′ 27″ | 0.229 20(1 07)″[6][7] | 14.231(66) | ||
33 | 沃夫424 (室女座FL,LHS 333, GJ 473) |
Wolf 424 A | style="background:
|
13.18 | 14.97 | ? | 12h 33m 17.2s | +09° 01′ 15″ | 0.227 90(4 60)″[6] | 14.312(289) | |
Wolf 424 B | style="background:
|
13.17 | 14.96 | ? | |||||||
34 | 白羊座TZ(GJ 83.1, Luyten 1159-16) | style="background:
|
12.27 | 14.03 | ? | 02h 00m 13.2s | +13° 03′ 08″ | 0.224 80(2 90)″[6] | 14.509(187) | ||
35 | Gl 687(LHS 450, BD+68°946) | style="background:
|
9.17 | 10.89 | ? | 17h 36m 25.9s | +68° 20′ 21″ | 0.220 49(0 82)″[6][7] | 14.793(55) | ||
36 | LHS 292(LP 731-58) | style="background:
|
15.60 | 17.32 | ? | 10h 48m 12.6s | −11° 20′ 14″ | 0.220 30(3 60)″[6] | 14.805(242) | ||
37 | Gl 674(LHS 449) | style="background:
|
9.38 | 11.09 | ? | 17h 28m 39.9s | −46° 53′ 43″ | 0.220 25(1 59)″[6][7] | 14.809(107) | ||
38 | GJ 1245 | GJ 1245 A | style="background:
|
13.46 | 15.17 | ? | 19h 53m 54.2s | +44° 24′ 55″ | 0.220 20(1 00)″[6] | 14.812(67) | |
GJ 1245 B | style="background:
|
14.01 | 15.72 | ? | 19h 53m 55.2s | +44° 24′ 56″ | |||||
GJ 1245 C | style="background:
|
16.75 | 18.46 | ? | 19h 53m 54.2s | +44° 24′ 55″ | |||||
39 | GJ 440(WD 1142-645) | DQ6 | 11.50 | 13.18 | 7,500 | 11h 45m 42.9s | −64° 50′ 29″ | 0.216 57(2 01)″[6][7] | 15.060(140) | ||
40 | GJ 1002 | style="background:
|
13.76 | 15.40 | ? | 00h 06m 43.8s | −07° 32′ 22″ | 0.213 00(3 60)″[6] | 15.313(259) | ||
41 | 罗斯780(GJ 876) | style="background:
|
10.17 | 11.81 | 3,480 | 22h 53m 16.7s | −14° 15′ 49″ | 0.212 59(1 96)″[6][7] | 15.342(141) | ||
42 | LHS 288(Luyten 143-23) | style="background:
|
13.90 | 15.51 | ? | 10h 44m 21.2s | −61° 12′ 36″ | 0.208 95(2 73)″[17] | 15.610(204) | [19] | |
43 | GJ 412 | GJ 412 A | style="background:
|
8.77 | 10.34 | ? | 11h 05m 28.6s | +43° 31′ 36″ | 0.206 02(1 08)″[6][7] | 15.832(83) | |
GJ 412 B(WX Ursae Majoris) | style="background:
|
14.48 | 16.05 | ? | 11h 05m 30.4s | +43° 31′ 18″ | |||||
44 | Groombridge 1618(GJ 380) | style="background:
|
6.59 | 8.16 | 4,000 | 10h 11m 22.1s | +49° 27′ 15″ | 0.205 81(0 67)″[6][7] | 15.848(52) | ||
45 | GJ 388 | style="background:
|
9.32 | 10.87 | ? | 10h 19m 36.4s | +19° 52′ 10″ | 0.204 60(2 80)″[6] | 15.942(218) | ||
46 | GJ 832 | style="background:
|
8.66 | 10.20 | ? | 21h 33m 34.0s | −49° 00′ 32″ | 0.202 78(1 32)″[6][7] | 16.085(105) | ||
47 | LP 944-020 | style="background:
|
18.50 | 20.02 | ? | 03h 39m 35.2s | −35° 25′ 41″ | 0.201 40(4 20)″[23] | 16.195(338) | ||
48 | DEN 0255-4700 | style="background:
|
22.92 | 24.44 | ? | 02h 55m 03.7s | −47° 00′ 52″ | 0.201 37(3 89)″[17] | 16.197(313) | [22] | |
49 | GJ 682 | style="background:
|
10.95 | 12.45 | ? | 17h 37m 03.7s | −44° 19′ 09″ | 0.199 65(2 30)″[6][7] | 16.337(188) | ||
# | 系统 | 恒星 | 恒星 类型 |
mV | MV | Teff K(±err) |
RA | Dec | Parallax[2] Arcseconds(±err) |
距离[3] 光年(±err) |
附加 参考资料 |
名称 | 历元J2000.0 |
近距离恒星图
下图是距离太阳在14光年以内的32颗恒星位置图,双星和三合星会以实际的数量推叠,但真实的位置是以最靠近中心平面的那一颗为准,颜色则与上面的表相对应。
相关条目
- 距离20–25光年的恒星列表
- 距离25–30光年的恒星列表
- 邻近恒星资料
- 小说中的恒星和行星系
- 豪勇七蛟龙 (中子星)
- 远日点最远的太阳系天体列表
- 海王星外天体列表
- 星际旅行
- 最近的星系列表
- 邻近系外行星列表
- 视差
- 近星研究会(RECONS - Research Consortium on Nearby Stars)
- 恒星
参考资料
- ↑ Weaver, Harold F. The Visibility of Stars Without Optical Aid. Publications of the Astronomical Society of the Pacific. 1947, 59 (350): 232–243. Bibcode:1947PASP...59..232W. doi:10.1086/125956.
- ↑ 2.0 2.1 Parallaxes given by RECONS are a weighted mean of values in the sources given, as well as measurements by the RECONS program.
- ↑ 3.0 3.1 From parallax.
- ↑ Sun Fact Sheet , NASA. Accessed on line 2007-11-08.
- ↑ 5.0 5.1 5.2 Kervella, Pierre; Thevenin, Frederic. A Family Portrait of the Alpha Centauri System: VLT Interferometer Studies the Nearest Stars. ESO Press Release 05/03 (ESO). 2003-03-15 [2007-11-08].
- ↑ 6.00 6.01 6.02 6.03 6.04 6.05 6.06 6.07 6.08 6.09 6.10 6.11 6.12 6.13 6.14 6.15 6.16 6.17 6.18 6.19 6.20 6.21 6.22 6.23 6.24 6.25 6.26 6.27 6.28 6.29 6.30 6.31 6.32 6.33 6.34 6.35 6.36 6.37 6.38 6.39 6.40 6.41 6.42 General Catalogue of Trigonometric Parallaxes.
- ↑ 7.00 7.01 7.02 7.03 7.04 7.05 7.06 7.07 7.08 7.09 7.10 7.11 7.12 7.13 7.14 7.15 7.16 7.17 7.18 7.19 7.20 7.21 7.22 7.23 7.24 7.25 7.26 7.27 7.28 Hipparcos Catalogue.
- ↑ Burgasser et al. 2000
- ↑ 9.0 9.1 9.2 Visual binary orbits and masses post Hipparcos, Staffan Söderhjelm, Astronomy and Astrophysics 341(January 1999),pp. 121–140.
- ↑ Barnard's Star and the M Dwarf Temperature Scale, P. C. Dawson and M. M. de Robertis, The Astronomical Journal 127, #5(May 2004),pp. 2909–2914. doi:10.1086/383289
- ↑ Luhman, K. L. Discovery of a Binary Brown Dwarf at 2 Parsecs from the Sun (PDF). Astrophysical Journal Letters(to be published).[失效链接]
- ↑ Ya. V. Pavlenko, H. R. A. Jones, Yu. Lyubchik, J. Tennyson, and D. J. Pinfield. Spectral energy distribution for GJ406. Astronomy and Astrophysics. 2006-02, 447 (2): 709–717 [2020-09-20]. doi:10.1051/0004-6361:20052979.
- ↑ Carbon monoxide bands in M dwarfs , Y. V. Pavlenko and H. R. A. Jones, Astronomy and Astrophysics 396(December 2002),pp. 967–975. doi:10.1051/0004-6361:20021454
- ↑ Table 2, The physical properties of normal A stars, Saul J. Adelman, pp. 1–11, The A-Star Puzzle, Proceedings of the International Astronomical Union, edited by J. Zverko, J. Ziznovsky, S. J. Adelman, and W. W. Weiss, Cambridge, UK: Cambridge University Press, 2004. doi:10.1017/S1743921304004314
- ↑ Adopted value, The Age and Progenitor Mass of Sirius B, James Liebert, Patrick A. Young, David Arnett, J.B. Holberg, and Kurtis A. Williams, The Astrophysical Journal 630, #1(September 2005),pp. L69–L72.
- ↑ 16.0 16.1 Kirkpatrick, J. Davy; Michael C. Cushing; Christopher R. Gelino; Roger L. Griffith; Michael F. Skrutskie; Kenneth A. Marsh; Edward L. Wright; Amanda K. Mainzer; Peter R. Eisenhardt; Ian S. McLean; Maggie A. Thompson; James M. Bauer; Dominic J. Benford; Carrie R. Bridge; Sean E. Lake; Sara M. Petty; S. Adam Stanford; Chao-Wei Tsai; Vanessa Bailey; Charles A. Beichman; John J. Bochanski; Adam J. Burgasser; Peter L. Capak; Kelle L. Cruz; Philip M. Hinz; Jeyhan S. Kartaltepe; Russell P. Knox; Swarnima Manohar; Daniel Masters; Maria Morales-Calderon; Lisa A. Prato; Timothy J. Rodigas; Mara Salvato; Steven D. Schurr; Nicholas Z. Scoville; Robert A. Simcoe; Karl R. Stapelfeldt; Daniel Stern; Nathan D. Stock; William D. Vacca. The First Hundred Brown Dwarfs Discovered by the Wide-field Infrared Survey Explorer(WISE). 2011. arXiv:1108.4677v1 [astro-ph.SR]. cite arXiv模板填写了不支持的参数 (帮助)
- ↑ 17.0 17.1 17.2 17.3 17.4 17.5 Systems with their first accurate trigonometric parallaxes measured by RECONS
- ↑ The solar neighborhood IV: discovery of the twentieth nearest star, Todd J. Henry, Philip A. Ianna, J. Davy Kirkpatrick, Hartmut Jahreiss, The Astronomical Journal 114, #1(July 1997),pp. 388–395. doi:10.1086/118482
- ↑ 19.0 19.1 19.2 19.3 The Solar Neighborhood. XVII. Parallax Results from the CTIOPI 0.9 m Program: 20 New Members of the RECONS 10 Parsec Sample, Todd J. Henry, Wei-Chun Jao, John P. Subasavage, Thomas D. Beaulieu, Philip A. Ianna, Edgardo Costa, René A. Méndez, The Astronomical Journal 132, #6(December 2006),pp. 2360–2371. doi:10.1086/508233
- ↑ 20.0 20.1 The very nearby M/T dwarf binary SCR 1845-6357 , Markus Kasper, Beth A. Biller, Adam Burrows, Wolfgang Brandner, Jano Budaj, and Laird M. Close, Astronomy and Astrophysics 471, #2(August 2007),pp. 655–659. doi:10.1051/0004-6361:20077881
- ↑ The Solar Neighborhood. XIII. Parallax Results from the CTIOPI 0.9 Meter Program: Stars with μ >= 1.0" yr-1 (Motion sample), Wei-Chun Jao, Todd J. Henry, John P. Subasavage, Misty A. Brown, Philip A. Ianna, Jennifer L. Bartlett, Edgardo Costa, René A. Méndez, The Astronomical Journal 129, #4(April 2005),pp. 1954–1967. doi:10.1086/428489
- ↑ 22.0 22.1 The Solar Neighborhood. XIV. Parallaxes from the Cerro Tololo Inter-American Observatory Parallax Investigation—First Results from the 1.5 m Telescope Program, Edgardo Costa, René A. Méndez, W.-C. Jao, Todd J. Henry, John P. Subasavage, Misty A. Brown, Philip A. Ianna, and Jennifer Bartlett, The Astronomical Journal 130, #1(July 2005),pp. 337–349. doi:10.1086/430473
- ↑ CCD astrometry of southern very low-mass stars, C. G. Tinney, Monthly Notices of the Royal Astronomical Society 281, #2(July 1996),pp. 644–658.
外部链接
- "The 100 nearest star systems" , Research Consortium on Nearby Stars
- NStars database. Northern Arizona University. [2005-10-24].
- Nemiroff, R.; Bonnell, J. (编). Map of the 25 nearest star systems. Astronomy Picture of the Day. NASA. 2001-03-18 [2005-10-24].
- Notable Nearby Stars. SolStation. [2005-10-24].
- Cool stars in the solar Neighbourhood. D. Montes, UCM. [2005-11-14].
- The dynamics of the closest stars
- Takeda, G.; E. B. Ford; A. Sills; F. A. Rasio; D. A. Fischer; J. A. Valenti. Structure and Evolution of Nearby Stars with Planets II. Physical Properties of ~ 1000 Cool Stars from the SPOCS Catalog. California & Carnegie Planet Search. 2006 [2006-10-13].
- Nearest Stars 3D View
- Table 4 "The Census of Stars and Brown Dwarfs within 8 Parsecs of the Sun" in Kirkpatrick et al. (2012) Further Defining Spectral Type "Y" and Exploring the Low-mass End of the Field Brown Dwarf Mass Function, http://arxiv.org/pdf/1205.2122v1.pdf
- http://phl.upr.edu/projects/nearby-stars-catalog