The star Drem as seen from above the asteroid ‘Warriors Heart’

      Drem - Star

M5V

Orbit 1:                                    .0188               Asteroid Belt (“night spirits”)    

Orbit 2:                                    .034                 HZ planet

Orbit 3:                                    .05                   Planet

Orbit 4:                                    .077                 Drem (Cold life planet)

Orbit 5:                                    .123                 Planet

Orbit 6:                                    .209                 Neptune sized-jovian

Inner Kuiperian                         1.745625        

Mid Kuiperian                          2.0519

Outer Kuiperian                        2.6644

Drem B T6V                            18.0

Oort Cloud                               2297.0

 

Planets can’t survive                 .0008404 AU

Inner System zone                    .134462 AU

Mass                                        .25 of sol

Diameter                                  .35053 of sol

Stellar Radius                           .35 of sol

Absolute Magnitude                  12.2

Luminosity                                .00113 of sol

Luminosity @ planet                 .996828 of sol

Temp in Kelvin                         3240

Mean Density                           7.40802 kg/cubic meter

Color                                       reddish Orange

Tidal Lock range:                      .475 AU

Apparent Diameter                   3.308267 suns

Apparent Brightness                 .086 of sol

SPF                                         .0047 of sol

Life zone                                  Inner - .0252 [2,369,893 km]

Optimum - .0336155 [3,159,857 km]

                                                Outer - .0471 [4,423,800 km]

 

Basics on Drem

 

The star Drem itself is quite odd for an M-star, but it is deeper where one has to look for the oddities. Drem is a typical cool, dim main sequence red star (M5V) that contains only 25.0 percent of mass of Sol, and 37.0 percent of the diameter. With luminosity roughly 1.1 percent of Sol, Drem is naked to the unaided eye. The star currently rotates roughly every 35 days, which gives the age of the star roughly 6.5 Billion years of age. Accounting for the amount of infra-red radiation, the star has a tiny habitable zone, located at roughly .02 to .05 AU, thus, any planet in that zone would be tidally locked and eternally show one face towards the star. This area is where a comfortable temperature would be found with liquid water and so capable of supporting “life as we know it”. Sunspots do occur on Drem, although rarely which is a strange thing since Drem is still a fairly young star, not an old star like Barnards Star which is roughly 11 to 12 Billion years old. This presents scientists with questions, as Drem is not known to burst out flares like most M-stars do, and so questions, studies and theories of why Drem does not flare up will need to be looked into.

 

Spectra of Drem showing that it’s an M5V

 

 

Possible Companion?

 

Ever since probes, telescopes both land based and in space detected this little star, oddities in the movement made questions arise. The main movement was a perceivable wobble, which immediately brings up questions of stellar or planetary companions. Data collected showed a strange 69 day period of wobble, which gave scientists an idea of what kind of object, how far it was, and how big the object might be that orbited Drem. Further data showed another wobble. The second wobble had a very long period of roughly 141 years. The first orbit mentioned was estimated at roughly .5 Jupiter masses down to .1 Jupiter masses which would mean the planet was definitely a small Jovian. The second orbit was of a much larger object, this one showed by being over 70 Jupiter masses, and was presented as a brown dwarf with a disputed classification of a T-dwarf. Further observation by near-infrared showed a large eccentricity in the orbit, so that the companion travels anywhere about 11.5 AU all the way out to 24.5 AU. The is a debate of fine wobbles within the companion itself which would mean that the companion might have a companion of its own.

 

Survey Team Findings:

 

The Drem system thru probes and direct observation make the final status of the companion to be a cool T6V. The companion is a cool Jupiter sized dwarf, of roughly 1000K, with a small system to its own, which solves the long held debate of the companions, wobbles. The Dremish system itself is like that of what scientists had hoped for with Proxima Centauri and Barnards Star, as Drem is very similar in ways to both stars. Why Drem does not have flares, yet is still a fairly young star still is perplexing, and requires further study.  With the basic study of Drem underway, the next phase is needed, and that is a full exploration of the planetary system of both the main Drem star, and that of Drem B.

 

 

 

Copyright 2006 by Kevin Urbanczyk

All Rights Reserved

 

Used with Celestia 1.4.1

 

Chris Laurel <claurel@www.shatters.net>

Clint Weisbrod <cweisbrod@cogeco.ca>

Fridger Schrempp <t00fri@mail.desy.de>

Bob Ippolito <bob@redivi.com>

Christophe Teyssier <chris@teyssier.org>

Hank Ramsey <hramsey@users.sourceforge.net>

Grant Hutchison <granthutchison@blueyonder.co.uk>

 

Spectra thanks:

Astronomy Department of Ohio State University: http://www.astronomy.ohio-state.edu/