{"id":926,"date":"2017-08-08T13:14:07","date_gmt":"2017-08-08T17:14:07","guid":{"rendered":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/back-matter\/a-9-the-nearest-stars-brown-dwarfs-and-white-dwarfs\/"},"modified":"2017-08-08T13:14:07","modified_gmt":"2017-08-08T17:14:07","slug":"a-9-the-nearest-stars-brown-dwarfs-and-white-dwarfs","status":"publish","type":"back-matter","link":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/back-matter\/a-9-the-nearest-stars-brown-dwarfs-and-white-dwarfs\/","title":{"raw":"A.9 The Nearest Stars, Brown Dwarfs, and White Dwarfs","rendered":"A.9 The Nearest Stars, Brown Dwarfs, and White Dwarfs"},"content":{"raw":"
The Nearest Stars, Brown Dwarfs, and White Dwarfs<\/th>\n<\/tr>
Star<\/th>\nSystem<\/th>\nDiscovery Name<\/th>\nDistance (light-year)<\/th>\nSpectral Type<\/th>\nLocation: RA1<\/sup><\/a><\/th>\nLocation: Dec2<\/sup><\/a><\/th>\nLuminosity (Sun = 1)<\/th>\n<\/tr><\/thead>
\n\nSun<\/td>\n\u2014<\/td>\nG2 V<\/td>\n\u2014<\/td>\n\u2014<\/td>\n1<\/td>\n<\/tr>
1<\/td>\n1<\/td>\nProxima Centauri<\/td>\n4.2<\/td>\nM5.5 V<\/td>\n14 29<\/td>\n\u221262 40<\/td>\n5 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>
2<\/td>\n2<\/td>\nAlpha Centauri A<\/td>\n4.4<\/td>\nG2 V<\/td>\n14 39<\/td>\n\u221260 50<\/td>\n1.5<\/td>\n<\/tr>
3<\/td>\n\nAlpha Centauri B<\/td>\n4.4<\/td>\nK2 IV<\/td>\n14 39<\/td>\n\u221260 50<\/td>\n0.5<\/td>\n<\/tr>
4<\/td>\n3<\/td>\nBarnard\u2019s Star<\/td>\n6.0<\/td>\nM4 V<\/td>\n17 57<\/td>\n+04 42<\/td>\n4.4 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>
5<\/td>\n4<\/td>\nWolf 359<\/td>\n7.8<\/td>\nM6 V<\/td>\n10 56<\/td>\n+07 00<\/td>\n2 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>
6<\/td>\n5<\/td>\nLalande 21 185<\/td>\n8.3<\/td>\nM2 V<\/td>\n11 03<\/td>\n+35 58<\/td>\n5.7 \u00d7 10\u22123<\/sup><\/td>\n<\/tr>
7<\/td>\n6<\/td>\nSirius A<\/td>\n8.6<\/td>\nA1 V<\/td>\n06 45<\/td>\n\u221216 42<\/td>\n23.1<\/td>\n<\/tr>
8<\/td>\n\nSirius B<\/td>\n8.6<\/td>\nDA23<\/sup><\/a><\/td>\n06 45<\/td>\n\u221216 43<\/td>\n2.5 \u00d7 10\u22123<\/sup><\/td>\n<\/tr>
9<\/td>\n7<\/td>\nLuyten 726-8 A<\/td>\n8.7<\/td>\nM5.5 V<\/td>\n01 39<\/td>\n\u221217 57<\/td>\n6 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>
10<\/td>\n\nLuyten 726-8 B (UV Ceti)<\/td>\n8.7<\/td>\nM6 V<\/td>\n01 39<\/td>\n\u221217 57<\/td>\n4 \u00d7 10\u22125<\/sup><\/td>\n<\/tr><\/tbody><\/table>
11<\/td>\n8<\/td>\nRoss 154<\/td>\n9.7<\/td>\nM.05 V<\/td>\n18 49<\/td>\n\u221223 50<\/td>\n5 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>
12<\/td>\n9<\/td>\nRoss 248 (HH Andromedae)<\/td>\n10.3<\/td>\nM5.5 V<\/td>\n23 41<\/td>\n+44 10<\/td>\n1.0 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>
13<\/td>\n10<\/td>\nEpsilon Eridani<\/td>\n10.5<\/td>\nK2 V<\/td>\n03 32<\/td>\n\u221209 27<\/td>\n0.29<\/td>\n<\/tr>
14<\/td>\n11<\/td>\nLacaille 9352<\/td>\n10.7<\/td>\nM0.5 V<\/td>\n23 05<\/td>\n\u221235 51<\/td>\n0.011<\/td>\n<\/tr>
15<\/td>\n12<\/td>\nRoss 128 (FI Virginis)<\/td>\n10.9<\/td>\nM4 V<\/td>\n11 47<\/td>\n+00 48<\/td>\n3.4 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>
16<\/td>\n13<\/td>\nLuyten 789-6 A (EZ Aquarii A)<\/td>\n11.3<\/td>\nM5 V<\/td>\n22 38<\/td>\n\u221215 17<\/td>\n5 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>
17<\/td>\n\nLuyten 789-6 B (EZ Aquarii B)<\/td>\n11.3<\/td>\nM5.5 V<\/td>\n22 38<\/td>\n\u221215 15<\/td>\n5 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>
18<\/td>\n\nLuyten 789-6 C (EZ Aquarii C)<\/td>\n11.3<\/td>\nM6.5 V<\/td>\n22 38<\/td>\n\u221215 17<\/td>\n2 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>
19<\/td>\n14<\/td>\n61 Cygni A<\/td>\n11.4<\/td>\nK5 V<\/td>\n21 06<\/td>\n+38 44<\/td>\n0.086<\/td>\n<\/tr>
20<\/td>\n\n61 Cygni B<\/td>\n11.4<\/td>\nK7 V<\/td>\n21 06<\/td>\n+38 44<\/td>\n0.041<\/td>\n<\/tr>
21<\/td>\n15<\/td>\nProcyon A<\/td>\n11.4<\/td>\nF51V<\/td>\n07 39<\/td>\n+05 13<\/td>\n7.38<\/td>\n<\/tr>
22<\/td>\n\nProcyon B<\/td>\n11.4<\/td>\nwd4<\/sup><\/a><\/td>\n07 39<\/td>\n+05 13<\/td>\n5.5 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>
23<\/td>\n16<\/td>\nSigma 2398 A<\/td>\n11.5<\/td>\nM3 V<\/td>\n18 42<\/td>\n+59 37<\/td>\n0.003<\/td>\n<\/tr>
24<\/td>\n\nSigma 2398 B<\/td>\n11.5<\/td>\nM3.5 V<\/td>\n18 42<\/td>\n+59 37<\/td>\n1.4 \u00d7 10\u22123<\/sup><\/td>\n<\/tr>
25<\/td>\n17<\/td>\nGroombridge 34 A (GX Andromedae)<\/td>\n11.6<\/td>\nM1.5 V<\/td>\n00 18<\/td>\n+44 01<\/td>\n6.4 \u00d7 10\u22123<\/sup><\/td>\n<\/tr><\/tbody><\/table>
\n

Footnotes<\/h2>\n
  1. 1<\/a> Location (right ascension) given for Epoch 2000.0<\/li>\n \t
  2. 2<\/a> Location (declination) given for Epoch 2000.0<\/li>\n \t
  3. 3<\/a> White dwarf stellar remnant<\/li>\n \t
  4. 4<\/a> White dwarf stellar remnant<\/li>\n \t
  5. 5<\/a> Brown dwarf<\/li>\n \t
  6. 6<\/a> Brown dwarf<\/li>\n \t
  7. 7<\/a> Brown dwarf<\/li>\n<\/ol><\/div>","rendered":"\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    The Nearest Stars, Brown Dwarfs, and White Dwarfs<\/th>\n<\/tr>\n
    Star<\/th>\nSystem<\/th>\nDiscovery Name<\/th>\nDistance (light-year)<\/th>\nSpectral Type<\/th>\nLocation: RA1<\/sup><\/a><\/th>\nLocation: Dec2<\/sup><\/a><\/th>\nLuminosity (Sun = 1)<\/th>\n<\/tr>\n<\/thead>\n
    \n<\/td>\n\n<\/td>\nSun<\/td>\n\u2014<\/td>\nG2 V<\/td>\n\u2014<\/td>\n\u2014<\/td>\n1<\/td>\n<\/tr>\n
    1<\/td>\n1<\/td>\nProxima Centauri<\/td>\n4.2<\/td>\nM5.5 V<\/td>\n14 29<\/td>\n\u221262 40<\/td>\n5 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>\n
    2<\/td>\n2<\/td>\nAlpha Centauri A<\/td>\n4.4<\/td>\nG2 V<\/td>\n14 39<\/td>\n\u221260 50<\/td>\n1.5<\/td>\n<\/tr>\n
    3<\/td>\n\n<\/td>\nAlpha Centauri B<\/td>\n4.4<\/td>\nK2 IV<\/td>\n14 39<\/td>\n\u221260 50<\/td>\n0.5<\/td>\n<\/tr>\n
    4<\/td>\n3<\/td>\nBarnard\u2019s Star<\/td>\n6.0<\/td>\nM4 V<\/td>\n17 57<\/td>\n+04 42<\/td>\n4.4 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>\n
    5<\/td>\n4<\/td>\nWolf 359<\/td>\n7.8<\/td>\nM6 V<\/td>\n10 56<\/td>\n+07 00<\/td>\n2 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>\n
    6<\/td>\n5<\/td>\nLalande 21 185<\/td>\n8.3<\/td>\nM2 V<\/td>\n11 03<\/td>\n+35 58<\/td>\n5.7 \u00d7 10\u22123<\/sup><\/td>\n<\/tr>\n
    7<\/td>\n6<\/td>\nSirius A<\/td>\n8.6<\/td>\nA1 V<\/td>\n06 45<\/td>\n\u221216 42<\/td>\n23.1<\/td>\n<\/tr>\n
    8<\/td>\n\n<\/td>\nSirius B<\/td>\n8.6<\/td>\nDA23<\/sup><\/a><\/td>\n06 45<\/td>\n\u221216 43<\/td>\n2.5 \u00d7 10\u22123<\/sup><\/td>\n<\/tr>\n
    9<\/td>\n7<\/td>\nLuyten 726-8 A<\/td>\n8.7<\/td>\nM5.5 V<\/td>\n01 39<\/td>\n\u221217 57<\/td>\n6 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>\n
    10<\/td>\n\n<\/td>\nLuyten 726-8 B (UV Ceti)<\/td>\n8.7<\/td>\nM6 V<\/td>\n01 39<\/td>\n\u221217 57<\/td>\n4 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
    11<\/td>\n8<\/td>\nRoss 154<\/td>\n9.7<\/td>\nM.05 V<\/td>\n18 49<\/td>\n\u221223 50<\/td>\n5 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>\n
    12<\/td>\n9<\/td>\nRoss 248 (HH Andromedae)<\/td>\n10.3<\/td>\nM5.5 V<\/td>\n23 41<\/td>\n+44 10<\/td>\n1.0 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>\n
    13<\/td>\n10<\/td>\nEpsilon Eridani<\/td>\n10.5<\/td>\nK2 V<\/td>\n03 32<\/td>\n\u221209 27<\/td>\n0.29<\/td>\n<\/tr>\n
    14<\/td>\n11<\/td>\nLacaille 9352<\/td>\n10.7<\/td>\nM0.5 V<\/td>\n23 05<\/td>\n\u221235 51<\/td>\n0.011<\/td>\n<\/tr>\n
    15<\/td>\n12<\/td>\nRoss 128 (FI Virginis)<\/td>\n10.9<\/td>\nM4 V<\/td>\n11 47<\/td>\n+00 48<\/td>\n3.4 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>\n
    16<\/td>\n13<\/td>\nLuyten 789-6 A (EZ Aquarii A)<\/td>\n11.3<\/td>\nM5 V<\/td>\n22 38<\/td>\n\u221215 17<\/td>\n5 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>\n
    17<\/td>\n\n<\/td>\nLuyten 789-6 B (EZ Aquarii B)<\/td>\n11.3<\/td>\nM5.5 V<\/td>\n22 38<\/td>\n\u221215 15<\/td>\n5 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>\n
    18<\/td>\n\n<\/td>\nLuyten 789-6 C (EZ Aquarii C)<\/td>\n11.3<\/td>\nM6.5 V<\/td>\n22 38<\/td>\n\u221215 17<\/td>\n2 \u00d7 10\u22125<\/sup><\/td>\n<\/tr>\n
    19<\/td>\n14<\/td>\n61 Cygni A<\/td>\n11.4<\/td>\nK5 V<\/td>\n21 06<\/td>\n+38 44<\/td>\n0.086<\/td>\n<\/tr>\n
    20<\/td>\n\n<\/td>\n61 Cygni B<\/td>\n11.4<\/td>\nK7 V<\/td>\n21 06<\/td>\n+38 44<\/td>\n0.041<\/td>\n<\/tr>\n
    21<\/td>\n15<\/td>\nProcyon A<\/td>\n11.4<\/td>\nF51V<\/td>\n07 39<\/td>\n+05 13<\/td>\n7.38<\/td>\n<\/tr>\n
    22<\/td>\n\n<\/td>\nProcyon B<\/td>\n11.4<\/td>\nwd4<\/sup><\/a><\/td>\n07 39<\/td>\n+05 13<\/td>\n5.5 \u00d7 10\u22124<\/sup><\/td>\n<\/tr>\n
    23<\/td>\n16<\/td>\nSigma 2398 A<\/td>\n11.5<\/td>\nM3 V<\/td>\n18 42<\/td>\n+59 37<\/td>\n0.003<\/td>\n<\/tr>\n
    24<\/td>\n\n<\/td>\nSigma 2398 B<\/td>\n11.5<\/td>\nM3.5 V<\/td>\n18 42<\/td>\n+59 37<\/td>\n1.4 \u00d7 10\u22123<\/sup><\/td>\n<\/tr>\n
    25<\/td>\n17<\/td>\nGroombridge 34 A (GX Andromedae)<\/td>\n11.6<\/td>\nM1.5 V<\/td>\n00 18<\/td>\n+44 01<\/td>\n6.4 \u00d7 10\u22123<\/sup><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
    \n

    Footnotes<\/h2>\n
      \n
    1. 1<\/a> Location (right ascension) given for Epoch 2000.0<\/li>\n
    2. 2<\/a> Location (declination) given for Epoch 2000.0<\/li>\n
    3. 3<\/a> White dwarf stellar remnant<\/li>\n
    4. 4<\/a> White dwarf stellar remnant<\/li>\n
    5. 5<\/a> Brown dwarf<\/li>\n
    6. 6<\/a> Brown dwarf<\/li>\n
    7. 7<\/a> Brown dwarf<\/li>\n<\/ol>\n<\/div>\n","protected":false},"author":9,"menu_order":9,"template":"","meta":{"pb_show_title":"on","pb_short_title":"","pb_subtitle":"","pb_authors":[],"pb_section_license":""},"back-matter-type":[],"contributor":[],"license":[],"class_list":["post-926","back-matter","type-back-matter","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/pressbooks\/v2\/back-matter\/926","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/pressbooks\/v2\/back-matter"}],"about":[{"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/wp\/v2\/types\/back-matter"}],"author":[{"embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/wp\/v2\/users\/9"}],"version-history":[{"count":0,"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/pressbooks\/v2\/back-matter\/926\/revisions"}],"metadata":[{"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/pressbooks\/v2\/back-matter\/926\/metadata\/"}],"wp:attachment":[{"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/wp\/v2\/media?parent=926"}],"wp:term":[{"taxonomy":"back-matter-type","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/pressbooks\/v2\/back-matter-type?post=926"},{"taxonomy":"contributor","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/wp\/v2\/contributor?post=926"},{"taxonomy":"license","embeddable":true,"href":"https:\/\/pressbooks.bccampus.ca\/astronomy1105\/wp-json\/wp\/v2\/license?post=926"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}