70 Ophiuchi - Revision history

Alastair: /* Fact */ add link to e indi

2018-08-02T03:40:24Z

Fact: add link to e indi

Alastair: add link

2018-08-02T03:39:42Z

add link

Alastair: import changes from private wiki

2018-08-02T03:37:47Z

import changes from private wiki

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== 70 Ophiuchi AB ==

=== Fact ===
A double star, it is located about 16.6 ly away in the northeastern part of the constellation Ophiuchus. 70 Ophiuchi A and B may be separated on average by a semi-major axis of 23.2 AUs in a highly elliptical orbit (e= 0.499) that takes 83.38 years to complete. The distance separating the two stars varies from 11.4 and 34.8 AUs; they are always separated from each other by at least the orbital distance of Saturn in the Solar System. (This orbit is very similar to that of Alpha Centauri A and B.)

70 Ophiuchi A is a K0 to K1-type orange-yellow star, similar to Alpha Centauri B. 70 Ophiuchi B is slightly smaller and cooler, an orange K4-5, slightly cooler than Epsilon Indi. Neither star has large (super-Jupiter) companions at any detectable distance. Smaller planets would be below current detection thresholds so far.

It is 7.8 ly from the bright white star Altair (Alpha Aquilae)

=== Fiction ===

The system has at least one terraformed planet.

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 A double star, it is located about 16.6 ly away in the northeastern part of the constellation Ophiuchus. 70 Ophiuchi A and B may be separated on average by a semi-major axis of 23.2 AUs in a highly elliptical orbit (e= 0.499) that takes 83.38 years to complete. The distance separating the two stars varies from 11.4 and 34.8 AUs; they are always separated from each other by at least the orbital distance of Saturn in the Solar System.  (This orbit is very similar to that of Alpha Centauri A and B.)
-Ophiuchi A is a K0 to K1-type orange-yellow star, similar to [[Alpha Centauri]] B. 70 Ophiuchi B is slightly smaller and cooler, an orange K4-5, slightly cooler than Epsilon Indi.  Neither star has large (super-Jupiter) companions at any detectable distance.  Smaller planets would be below current detection thresholds so far.
+Ophiuchi A is a K0 to K1-type orange-yellow star, similar to [[Alpha Centauri]] B. 70 Ophiuchi B is slightly smaller and cooler, an orange K4-5, slightly cooler than [[Epsilon Indi]].  Neither star has large (super-Jupiter) companions at any detectable distance.  Smaller planets would be below current detection thresholds so far.
 It is 7.8 ly from the bright white star Altair (Alpha Aquilae)