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Doubles in session


Current system
15496-0326
CHR 259
Mu Ser


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Selections
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Binocular doubles
Binary Systems
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Quadruple Systems
Multiple Systems
Neglected List I
Neglected List II
Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

15496-0326 CHR 259 (Mu Ser)

 
 
15h 49m 37.20s -03° 25' 48.7" P.A. 313.40 sep 0.4 mag 3.75,5.39 Sp A0V dist. 52 pc (169.62 l.y.)
 
 
Coord 2000
15496-0326
 Discov num
CHR 259
 Comp
Coord arcsec 2000
15 49 37.20 -03 25 48.7
Date first
1991
 Date last
2018
 Obs
17
Pa first
106
 Pa last
319
 P.A. Now (θ)
313.4°
Sep first
0.2
 Sep last
0.4
 Sep. Now (ρ)
0.42"
Mag pri
3.75
 Mag sec
5.39
 delta mag (ΔM)
1.64
 Spectral class
A0V (white)
Pri motion ra
-098
 Sec motion ra
Pri motion dec
-027
 Sec motion dec
Notes
N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Precise pa
318.5
 Precise sep
0.369
 Name
Mu Ser
 Constellation
Serpens
SAO
140787
 HIP
77516
 Gaia DR2
4402474042571751424
 HD
141513
HR
5881
 GC
21269
 BD
BD-02 4052
 Bayer
Mu Serpentis
Bayer name
Mu Ser
 Flamsteed
32 Serpentis
 Flamsteed name
32 Ser
 Distance
52
Distance ly
169.62
 last precise pa
318.5
 last precise sep
0.369
 
 
ORBITAL ELEMENTS
 
 
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 Grade4(1=Definitive, 9=Indet.)
Equinox2000 Last observation2018
label rho theta
2000 0.219 68.6
2001 0.206 62.3
2002 0.194 55.1
2003 0.185 47.1
2004 0.178 38.4
2005 0.176 29.3
2006 0.177 20.1
2007 0.182 11.1
2008 0.190 2.8
2009 0.201 355.3
2010 0.215 348.7
2011 0.231 343.0
2012 0.248 338.0
2013 0.267 333.7
2014 0.286 329.9
2015 0.305 326.6
2016 0.325 323.8
2017 0.345 321.2
2018 0.365 318.9
2019 0.384 316.9
2020 0.403 315.1
2021 0.422 313.4
2022 0.441 311.8
2023 0.459 310.4
2024 0.477 309.1
2025 0.494 307.9
2026 0.510 306.8
2027 0.526 305.7
2028 0.541 304.7
2029 0.555 303.8
2030 0.568 302.9


 
 grafico orbita
Note: Theta is PA, Rho is Sep. For yearly orbits, data refer to Jan 1st.


 
  


wds15496-0326d.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS HISTORIC DATA
 
 
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

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