Our nearest neighbours - SO 0253-1652

Our nearest neighbours - SO 0253-1652

SO 0253-1652 is the 23rd closest system to Sol and is located in
Aries, the Ram. SO 0253-1652 was first reported as recently as 2006
and consists of a red dwarf of spectral class M7.0 and with an
estimated mass of only 8% that of the Sun.

http://www.martin-nicholson.info/close/number23.htm

Martin Nicholson, Daventry, England.
http://www.martin-nicholson.info/1/1a.htm
Visit the Astronomical Hall of Shame at http://www.geocities.com/queen5658/

"ukastronomy" wrote in message
oups.com...
Our nearest neighbours - SO 0253-1652

SO 0253-1652 is the 23rd closest system to Sol and is located in
Aries, the Ram. SO 0253-1652 was first reported as recently as 2006
and consists of a red dwarf of spectral class M7.0 and with an
estimated mass of only 8% that of the Sun.

http://www.martin-nicholson.info/close/number23.htm

Martin Nicholson, Daventry, England.
http://www.martin-nicholson.info/1/1a.htm
Visit the Astronomical Hall of Shame at
http://www.geocities.com/queen5658/

How far away from the Earth is this star? Just curious.

George

"George" wrote in news:ws_Xi.15379$W9.13775
@bignews6.bellsouth.net:

SO 0253-1652

According to this:

http://www.nbso.org/NBSO_100_Closest_Stars.htm

12.53 ly

They don't cite the source of the measurement but I would guess the ESA
Hipparcos astrometry mission.

Klazmon

In article ,
Llanzlan Klazmon the 15th wrote:

"George" wrote in news:ws_Xi.15379$W9.13775
@bignews6.bellsouth.net:

SO 0253-1652

According to this:

http://www.nbso.org/NBSO_100_Closest_Stars.htm

12.53 ly

They don't cite the source of the measurement but I would guess the ESA
Hipparcos astrometry mission.

Hipparcos flew in the early 1990s; this star (apparently known to some
as "Teegarden's") was only reported in 2003, from data obtained by NEAT,
and the current distance estimate dates from 2006. See

http://www.solstation.com/stars/so025300.htm,

which credits relevant observations to RECONS, Allegheny Observatory,
and the USNO.

--
Odysseus

Odysseus wrote in newsdysseus1479-at-
:

In article ,
Llanzlan Klazmon the 15th wrote:

"George" wrote in news:ws_Xi.15379$W9.13775
@bignews6.bellsouth.net:

SO 0253-1652

According to this:

http://www.nbso.org/NBSO_100_Closest_Stars.htm

12.53 ly

They don't cite the source of the measurement but I would guess the ESA
Hipparcos astrometry mission.

Hipparcos flew in the early 1990s; this star (apparently known to some
as "Teegarden's") was only reported in 2003, from data obtained by NEAT,
and the current distance estimate dates from 2006. See

http://www.solstation.com/stars/so025300.htm,

which credits relevant observations to RECONS, Allegheny Observatory,
and the USNO.


Thanks. I guess it is about time for Hipparcos V2. NASA's FAME mission was
cancelled. I gather that the planned SIM mission has the capability but
isn't intended as a general cataloguing project but aimed at planet
finding, microlensing and studying a limited number of specific targets. Is
there anything else planned?

On 2007-11-07, Llanzlan Klazmon the 15th wrote:
Thanks. I guess it is about time for Hipparcos V2. NASA's FAME mission was
cancelled. I gather that the planned SIM mission has the capability but
isn't intended as a general cataloguing project but aimed at planet
finding, microlensing and studying a limited number of specific targets. Is
there anything else planned?

The Europeans are due to launch GAIA in about the 2011 to 2013
timescale. I personally wouldn't count on SIM flying.

In message .com,
ukastronomy writes
Our nearest neighbours - SO 0253-1652

SO 0253-1652 is the 23rd closest system to Sol and is located in
Aries, the Ram. SO 0253-1652 was first reported as recently as 2006
and consists of a red dwarf of spectral class M7.0 and with an
estimated mass of only 8% that of the Sun.

http://www.martin-nicholson.info/close/number23.htm

There's a few other red objects on the animation, but's what the blue
(or at least infra-red faint) object over to the left?
--
Stewart Robert Hinsley