20 nearest stars

20 nearest stars

Table
The 20 nearest stars
name visual magnitude* and spectral type distance in light-years** visual luminosity relative to the Sun
A*** B***     A***       B***
Proxima Centauri (Alpha Centauri) 11.01 M5.5 Ve   4.2 0.00005
Alpha Centauri (A and B only) 0.00 G2 V 1.35 K1 V   4.4 1.41 0.405
Barnard's star 9.54 M5 V   5.9 0.00039
Wolf 359 13.46 M6.5 Ve   7.8 0.00002
BD +36 2147 7.49 M2 V   8.3 0.00506
Sirius –1.44 A1 V 8.44 DA 2   8.6 20.2 0.00226
Luyten 726-8 12.56 M5.5 Ve 12.96 M5.5 Ve   8.7 0.00005 0.00004
Ross 154 10.37 M3.6 Ve   9.7 0.00049
Ross 248 12.27 M5.5 Ve 10.3 0.0001
Epsilon Eridani 3.72 K2 V 10.5 0.26
CD –36 15693 7.35 M2 V 10.7 0.00961
Ross 128 11.12 M4 V 10.9 0.00031
Luyten 789-6 12.32 M5 Ve 11.2 0.00011
61 Cygni 5.20 K5 V 6.05 K7 V 11.4 0.0784 0.0358
Procyon 0.40 F5 IV-V 10.70 DZ 11.4 6.54 0.0005
BD +59 1915 8.94 M3.4 V 11.5 0.00257
BD +43 44 8.09 M2 V 11.10 M4 V 11.6 0.00571 0.00036
Gliese 51-15 14.81 M6.5 Ve 11.8 0.00001
Epsilon Indi 4.69 K4 Ve 11.8 0.135
Tau Ceti 3.49 G8 V 11.9 0.413
*Negative magnitudes are brightest, and one magnitude difference corresponds to a difference in brightness of 2.5 times; e.g., a star of magnitude –1 is 10 times brighter than one of magnitude 1.5.
**One light-year equals about 9.46 trillion km.
***A and B are brighter and fainter components, respectively, of star.
See as table:

* * *


Universalium. 2010.

Игры ⚽ Поможем написать курсовую

Look at other dictionaries:

  • List of nearest stars — Artist s conception of a red dwarf star, the most common type of star in the Sun s stellar neighborhood, and in the universe. Although termed a red dwarf, the surface temperature of this star would give it an orange hue when viewed from close… …   Wikipedia

  • Stars Hotel Tours Sud (Tours) — Stars Hotel Tours Sud country: France, city: Tours (Chambray Les Tours) Stars Hotel Tours Sud Stars Hotel Tours Sud is located just 10 minutes from the Palais Des Expositions convention centre.Leisure travellers will appreciate the hotel s close… …   International hotels

  • Stars Hotel Beaune (Beaune) — Stars Hotel Beaune country: France, city: Beaune (Town Suburb) Stars Hotel Beaune Location The hotel is located near the city centre and within easy reach of the A6 motorway. Beaune train station is 1 km away.Rooms The hotel has 37 comfortable,… …   International hotels

  • Stars Hotel Reims Tinqueux (Reims) — Stars Hotel Reims Tinqueux country: France, city: Reims (Tinqueux) Stars Hotel Reims Tinqueux Location The hotel is located on the outskirts of the city, conveniently close to all main road and rail links.Rooms There are 45 rooms, each equipped… …   International hotels

  • Stars and planetary systems in fiction — The planetary systems of stars other than the Sun and the Solar System are a staple element in much science fiction. Contents 1 Overview 1.1 The brightest stars …   Wikipedia

  • Stars named after people — Over the past few centuries, a small number of stars have been named after individual people. It is common in astronomy for objects to be given names, in accordance with accepted astronomical naming conventions. However, most stars are not given… …   Wikipedia

  • STARS, THE —    are mostly suns, but being, the nearest of them, at a distance from us more than 500,000 times our distance from the sun, are of a size we cannot estimate, but are believed to be 300 times larger than the earth; they are of unequal brightness …   The Nuttall Encyclopaedia

  • List of selected stars for navigation — The selected stars for navigation are often used for sextant observations. Fifty eight selected navigational stars are given a special status in the field of celestial navigation. Of the approximately 6,000 stars visible to the naked eye under… …   Wikipedia

  • List of most luminous stars — Below is a list of stars arranged in order of decreasing luminosity (increasing bolometric magnitude). Accurate measurement of stellar luminosities is quite difficult in practice, even when the apparent magnitude is measured accurately, for three …   Wikipedia

  • List of nearest bright stars — The list of nearest bright stars is a table of stars found within 15 parsecs of the Sun that have an absolute magnitude of +8.5 or brighter. (This is approximately comparable to a listing of stars brighter than a main sequence red dwarf.) Right… …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”