Coord 2000 | 15496-0326 |
Discov num | CHR 259 |
Comp | Coord arcsec 2000 | 15 49 37.20 -03 25 48.7 |
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Date first | 1991 |
Date last | 2018 |
Obs | 17 |
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Pa first | 106 |
Pa last | 319 |
P.A. Now (θ) | 313.4° |
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Sep first | 0.2 |
Sep last | 0.4 |
Sep. Now (ρ) | 0.42" |
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Mag pri | 3.75 |
Mag sec | 5.39 |
delta mag (ΔM) | 1.64 |
Spectral class | A0V (white) |
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Pri motion ra | -098 |
Sec motion ra | |||||||||
Pri motion dec | -027 |
Sec motion dec | |||||||||
Notes |
Precise pa | 318.5 |
Precise sep | 0.369 |
Name | Mu Ser |
Constellation | Serpens |
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SAO | 140787 |
HIP | 77516 |
Gaia DR2 | 4402474042571751424 |
HD | 141513 |
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HR | 5881 |
GC | 21269 |
BD | BD-02 4052 |
Bayer | Mu Serpentis |
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Bayer name | Mu Ser |
Flamsteed | 32 Serpentis |
Flamsteed name | 32 Ser |
Distance | 52 |
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Distance ly | 169.62 |
last precise pa | 318.5 |
last precise sep | 0.369 |
Period (P) | 71.094y | Periastron (T) | 1989.836y | Semi-major axis (a) | 0.552a | |||
Eccentricity (e) | 0.662 | Inclination (i) | 104.3° | Longitude of periastron (ω) | 120.1° | |||
Node (Ω) | 284.4° | Note | Grade | 4 | (1=Definitive, 9=Indet.) | |||
Equinox | 2000 | Last observation | 2018 |
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Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st. |
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![]() Measures: green=micrometric, blue=interferometric, purple=photographic |
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coord_2000 | discov_num | comp | epoch | obs | pa | sep | mag_pri | mag_sec | spectr | notes | coord_arcsec_2000 |
15496-0326 | CHR 259 | 1999 | 6 | 72 | 0.2 | 3.75 | 5.39 | A0V | NO | 154937.20-032548.7 | |
15496-0326 | CHR 259 | 2009 | 9 | 174 | 0.2 | 3.75 | 5.39 | A0V | NO | 154937.20-032548.7 | |
15496-0326 | CHR 259 | 2011 | 13 | 341 | 0.2 | 3.75 | 5.39 | A0V | NO | 154937.20-032548.7 | |
15496-0326 | CHR 259 | 2014 | 14 | 329 | 0.3 | 3.75 | 5.39 | A0V | NO | 154937.20-032548.7 | |
15496-0326 | CHR 259 | 2016 | 16 | 323 | 0.3 | 3.75 | 5.39 | A0V | NO | 154937.20-032548.7 | |
15496-0326 | CHR 259 | 2018 | 17 | 319 | 0.4 | 3.75 | 5.39 | A0V | NO | 154937.20-032548.7 |