Table of Contents

Evolution of Stars
30 Bright Stars
30 Nearest Stars
Questions

Intro to Astronomy
Misconceptions

Archaeoastronomy
Equitorial Coordinates
Understanding the Seasons

Time & Its Measurement

Telescopes  

Solar & Lunar Eclipses

The Solar System

The Earth

The Moon

Mecury, Venus, Mars

The Outer Planets

Solar System Debris

The Sun

Intersteller Matter

Sky Literacy






30 of the Nearest Stars

Star
Apparent Magnitude (m)
Absolute Magnitude (M)
Distance (light yrs)
Spectral Type
Sun
-26.7
+4.8
8.3 light min
G2
Proxima Cen
+11.0
+15.4
4.2
M5
Alpha Cen A
0.0
+4.4
4.2
G2
Alpha Cen B
+1.3
+5.7
4.2
K0
Barnard's Star
+9.5
+13.2
5.9
M5
Wolf 359
+13.5
+16.5
7.5
M8
Lalande 21185
+7.5
+10.7
8.1
M2
UV Ceti A
+12.5
+15.3
8.8
M6
UV Ceti B
+13.0
+15.8
8.8
M6
Sirius A
-1.5
+1.4
8.8
A1
Sirius B
+8.7
+11.6
8.8
wdA
Ross 154
+10.6
+13.3
9.5
M5
Epsilon Eridani
+3.7
+6.1
10.7
K2
61 Cygni A
+5.2
+7.5
11.1
K5
61 Cygni B
+6.0
+8.3
11.1
K7
Epsilon Indi
+4.7
+7.0
11.1
K5
Procyon A
+0.4
+2.7
11.3
F5
Procyon B
+10.7
+13.0
11.3
wdF
Tau Ceti
+3.5
+5.7
12.0
G8
Lacaille 8760
+7.4
+9.5
12.4
M1
Kapteyn's Star
+8.8
+10.8
12.7
M0
Kruger 60 A
+9.8
+11.9
13.0
M4
Kruger 60 B
+11.3
+13.4
13.0
M5
Van Maanen's Star
+12.4
+14.2
14.1
wdG
40 Eridani A
+4.4
+6.0
15.7
K1
40 Eridani B
+9.5
+11.1
15.7
wdA
40 Eridani C
+11.2
+12.8
15.7
M4
70 Ophiuchi A
+4.2
+5.8
16.0
K0
70 Ophiuchi B
+6.0
+7.5
16.0
K5
Altair
+0.8
+2.2
16.5
A7

m - M = 5 log (d / 10) where d is in parsecs (1 parsec = 3.26 light years)

* - Binary of multiple star system in which the second component contributes much of the light of the system