chornedsnorkack

2018-Jul-17, 04:30 PM

How much mass is found in solar neighbourhood?

Within 5 pc of Sun, I seem to find the following:

Magnitude 1 - 1 dwarf, Sirius A, 1,42, A1, 2,06

Magnitude 2 - 1 dwarf, Procyon A, 2,66, F5, 1,50

Magnitude 3 - 0

Magnitude 4 - 2 dwarfs, Rigil Kentaurus A, 4,38, and Sun, 4,85, both G2, 1,10 and 1, combined 2,1

Magnitude 5 - 2 dwarfs, Tau Ceti, 5,68, G8, 0,78, and Rigil Kentaurus B, 5,71, K1, 0,91, combined 1,69

Magnitude 6 - 2 dwarfs, Epsilon Eridani, 6,19, K2, 0,82, and Indi, 6,89, K5, 0,76, combined 1,58

Magnitude 7 - 1 dwarf, 61 Cygni A, 7,49, K5, 0,70

Magnitude 8 - 3 dwarfs, 8,16...8,69, K7...M0, 0,67...0,60, combined 1,9

Magnitude 9 - 1 dwarf, Lacaille 9352, 9,75, M0, 0,50

Magnitude 10 - 8 dwarfs, 10,20...10,89, M1...M3, 0,45...0,40, combined 3,4

Magnitude 11 - 7 red dwarfs, 11,09...11,97, M3, 0,35...0,26, combined 2,1, and 1 white dwarf, Sirius B, 11,34, DA2, 1,02

Magnitude 12 - 1 white dwarf, Procyon B, 12,98, DQZ, 0,60

Magnitude 13 - 6 red dwarfs, 13,07...13,51, M3...M4, 0,17, combined 1,0, and 1 white dwarf, Gliese 440, 13,18, DQ6, 0,75

Magnitude 14 - 5 red dwarfs, 14,03...14,97, M4...M5, 0,13...0,14, combined 0,7, and 1 white dwarf, van Maanen´s star, 14,21, DZ7, 0,68

Magnitude 15 - 10 red dwarfs, 15,17...15,85, M5...M6, 0,11...0,10, combined 1,05

Magnitude 16 - 5 red dwarfs, 16,05...16,98, M5...M6, 0,10...0,09, combined 0,5

Magnitude 17 - 2 red dwarfs, 17,22...17,32, M6, 0,08, combined 0,16

Magnitude 18 - 1 red dwarf, GJ1245C, 18,46, M5, 0,07

Magnitude 19 - 2 red dwarfs, 19,37...19,41, M8, 0,07, combined 0,14

Within 5 pc of Sun, I seem to find the following:

Magnitude 1 - 1 dwarf, Sirius A, 1,42, A1, 2,06

Magnitude 2 - 1 dwarf, Procyon A, 2,66, F5, 1,50

Magnitude 3 - 0

Magnitude 4 - 2 dwarfs, Rigil Kentaurus A, 4,38, and Sun, 4,85, both G2, 1,10 and 1, combined 2,1

Magnitude 5 - 2 dwarfs, Tau Ceti, 5,68, G8, 0,78, and Rigil Kentaurus B, 5,71, K1, 0,91, combined 1,69

Magnitude 6 - 2 dwarfs, Epsilon Eridani, 6,19, K2, 0,82, and Indi, 6,89, K5, 0,76, combined 1,58

Magnitude 7 - 1 dwarf, 61 Cygni A, 7,49, K5, 0,70

Magnitude 8 - 3 dwarfs, 8,16...8,69, K7...M0, 0,67...0,60, combined 1,9

Magnitude 9 - 1 dwarf, Lacaille 9352, 9,75, M0, 0,50

Magnitude 10 - 8 dwarfs, 10,20...10,89, M1...M3, 0,45...0,40, combined 3,4

Magnitude 11 - 7 red dwarfs, 11,09...11,97, M3, 0,35...0,26, combined 2,1, and 1 white dwarf, Sirius B, 11,34, DA2, 1,02

Magnitude 12 - 1 white dwarf, Procyon B, 12,98, DQZ, 0,60

Magnitude 13 - 6 red dwarfs, 13,07...13,51, M3...M4, 0,17, combined 1,0, and 1 white dwarf, Gliese 440, 13,18, DQ6, 0,75

Magnitude 14 - 5 red dwarfs, 14,03...14,97, M4...M5, 0,13...0,14, combined 0,7, and 1 white dwarf, van Maanen´s star, 14,21, DZ7, 0,68

Magnitude 15 - 10 red dwarfs, 15,17...15,85, M5...M6, 0,11...0,10, combined 1,05

Magnitude 16 - 5 red dwarfs, 16,05...16,98, M5...M6, 0,10...0,09, combined 0,5

Magnitude 17 - 2 red dwarfs, 17,22...17,32, M6, 0,08, combined 0,16

Magnitude 18 - 1 red dwarf, GJ1245C, 18,46, M5, 0,07

Magnitude 19 - 2 red dwarfs, 19,37...19,41, M8, 0,07, combined 0,14