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Two moments on Earth
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Two stars
Two moments.
Select two stars to see how Earth differed when their light began its journey.
First star
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Proxima Centauri (4.24 ly)
Sirius (8.6 ly)
Vega (25 ly)
Arcturus (36.7 ly)
Aldebaran (65 ly)
Polaris (433 ly)
Betelgeuse (700 ly)
Deneb (2600 ly)
Eta Carinae (7500 ly)
Pistol Star (25000 ly)
Caph (54.7 ly)
Alpheratz (97 ly)
Barnard's Star (5.96 ly)
Wolf 359 (7.86 ly)
Alkaid (104 ly)
Dubhe (123 ly)
Alphecca (75 ly)
Epsilon Eridani (10.5 ly)
Denebola (35.9 ly)
Alderamin (49 ly)
Errai (45 ly)
Hamal (66 ly)
Procyon (11.46 ly)
Alhena (109 ly)
Schedar (228 ly)
Eltanin (154.3 ly)
Tau Ceti (11.91 ly)
Zubeneschamali (185 ly)
Mirach (200 ly)
Diphda (96 ly)
Kapteyn's Star (12.83 ly)
Altair (16.73 ly)
Alphard (177 ly)
Pollux (33.78 ly)
Regulus (79.3 ly)
Spica (250 ly)
Antares (550 ly)
Rigel (860 ly)
Canopus (310 ly)
Achernar (139 ly)
Capella (42.9 ly)
Castor (51.5 ly)
Algol (93 ly)
Alnilam (2000 ly)
Alnitak (1260 ly)
Mimosa (280 ly)
Acrux (320 ly)
R136a1 (163000 ly)
S Doradus (169000 ly)
WOH G64 (160000 ly)
Second star
Select a star...
Proxima Centauri (4.24 ly)
Sirius (8.6 ly)
Vega (25 ly)
Arcturus (36.7 ly)
Aldebaran (65 ly)
Polaris (433 ly)
Betelgeuse (700 ly)
Deneb (2600 ly)
Eta Carinae (7500 ly)
Pistol Star (25000 ly)
Caph (54.7 ly)
Alpheratz (97 ly)
Barnard's Star (5.96 ly)
Wolf 359 (7.86 ly)
Alkaid (104 ly)
Dubhe (123 ly)
Alphecca (75 ly)
Epsilon Eridani (10.5 ly)
Denebola (35.9 ly)
Alderamin (49 ly)
Errai (45 ly)
Hamal (66 ly)
Procyon (11.46 ly)
Alhena (109 ly)
Schedar (228 ly)
Eltanin (154.3 ly)
Tau Ceti (11.91 ly)
Zubeneschamali (185 ly)
Mirach (200 ly)
Diphda (96 ly)
Kapteyn's Star (12.83 ly)
Altair (16.73 ly)
Alphard (177 ly)
Pollux (33.78 ly)
Regulus (79.3 ly)
Spica (250 ly)
Antares (550 ly)
Rigel (860 ly)
Canopus (310 ly)
Achernar (139 ly)
Capella (42.9 ly)
Castor (51.5 ly)
Algol (93 ly)
Alnilam (2000 ly)
Alnitak (1260 ly)
Mimosa (280 ly)
Acrux (320 ly)
R136a1 (163000 ly)
S Doradus (169000 ly)
WOH G64 (160000 ly)
