interstellar radio message
Only a handful of messages have been intentionally beamed from Earth toward other stars and star clusters in an attempt to make contact with extraterrestrial civilizations. Of these, the bulk have been sent from the Evpatoria Space Center in the Ukraine by a group under the direction of Alexander Zaitsev. The table below shows the expected times at which the three Evpatoria messages sent to date will arrive at various target stars. Details for the Arecibo Message are included for comparison. Also see CETI.
Arrival time of terrestrial radio messages | ||||||
---|---|---|---|---|---|---|
# | arrival | star | constellation | message | sent (d m y) | distance (ly) |
1 | Apr 2036 | Hip 4872 | Cassiopeia | Cosmic Call 2 | 06.07.2003 | 32.8 |
2 | Aug 2040 | HD 245409 | Orion | Cosmic Call 2 | 06.07.2003 | 37.1 |
3 | May 2044 | HD 75732 | Cancer | Cosmic Call 2 | 06.07.2003 | 40.9 |
4 | Sep 2044 | HD 10307 | Andromeda | Cosmic Call 2 | 06.07.2003 | 41.2 |
5 | Jul 2047 | HD 95128 | Ursa Major | Teen Age Message | 03.09.2001 | 45.9 |
6 | May 2049 | HD 95128 | Ursa Major | Cosmic Call 2 | 06.07.2003 | 45.9 |
7 | Apr 2051 | HD 190360 | Cygnus | Cosmic Call 1 | 01.07.1999 | 51.8 |
8 | Feb 2057 | HD 190406 | Sagitta | Cosmic Call 1 | 30.06.1999 | 57.6 |
9 | May 2057 | HD 76151 | Hydra | Teen Age Message | 04.09.2001 | 55.7 |
10 | Dec 2057 | HD 50692 | Gemini | Teen Age Message | 03.09.2001 | 56.3 |
11 | Jan 2059 | HD 126053 | Virgo | Teen Age Message | 03.09.2001 | 57.4 |
12 | Jan 2059 | HD 193664 | Draco | Teen Age Message | 04.09.2001 | 57.4 |
13 | Oct 2067 | HD 178428 | Sagitta | Cosmic Call 1 | 30.06.1999 | 68.3 |
14 | Nov 2069 | HD 186408 | Cygnus | Cosmic Call 1 | 24.05.1999 | 70.5 |
15 | Feb 2070 | HD 197076 | Delphinus | Teen Age Message | 29.08.2001 | 68.5 |
16 | ~25974 | Glob cluster M13 | Hercules | Arecibo | 16.11.1974 | ~24000 |