18483-6856 JAO 8

 
 
18h 48m 21.10s -68° 55' 32.0" P.A. 266.00 sep 0.8 mag 23.60,20.90 Sp M5.0V+WD
 
 
Coord 2000 18483-6856 Discov num JAO   8 Comp Coord arcsec 2000 18 48 21.10 -68 55 32.0
Date first 2011 Date last 2021 Obs 3
Pa first 278 Pa last 265.9 P.A. Now (θ) 265.9°
Sep first 0.3 Sep last 0.761 Sep. Now (ρ) 0.761"
Mag pri 23.60 Mag sec 20.90 delta mag (ΔM) 2.7 Spectral class M5.0V+WD (red/Wolf-Rayet)
Pri motion ra -034 Sec motion ra
Pri motion dec -123 Sec motion dec
Notes N O P (See Notes, Orbital solution, 100-year proper motion)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pavo
 
 
ORBITAL ELEMENTS
 
 
Period (P)15.17y± 3.25 Periastron (T)2004.58y± 0.02 Semi-major axis (a)0.2082a± 0.0255
Eccentricity (e)0.84± 0.03 Inclination (i)90.32°± 0.37 Longitude of periastron (ω)280.74°± 4.85
Node (Ω)248.08°± 2.25 Notesn ReferenceJao2014b
Equinox Last observation2011 Grade9(1=Definitive, 9=Indet.)
label theta rho
2000 68.8 0.134
2001 68.7 0.146
2002 68.5 0.150
2003 68.4 0.140
2004 68.2 0.095
2005 247.9 0.071
2006 247.5 0.083
2007 246.9 0.066
2008 245.8 0.041
2009 240.4 0.014
2010 76.4 0.014
2011 71.0 0.041
2012 69.9 0.067
2013 69.4 0.092
2014 69.1 0.113
2015 68.9 0.131
2016 68.7 0.144
2017 68.6 0.150
2018 68.4 0.143
2019 68.2 0.108
2020 248.1 0.056
2021 247.5 0.084
2022 247.0 0.069
2023 246.0 0.045
2024 242.4 0.019
2025 80.5 0.009
2026 71.3 0.037
2027 70.0 0.063
2028 69.4 0.088
2029 69.1 0.110
2030 68.9 0.128


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



 
 


wds18483-6856a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic
 
 
 
WDS 18483-6856 JAO 8 : NOTES
 
 
discov_num notes refcode
JAO 8 The fainter source in the STIS UV data is the red dwarf primary; the
brighter blue companion is a faint white dwarf with a mass >0.5Msun. Jao2014a
Primary is SCR 1848-6855, a high-proper motion M5.0V dwarf at 24.6pc.
Astrometric observations spanning 8.5 years reveal large photocentric
perturbation due to an initially unseen companion. The pair was
subsequently resolved by HST/STIS. Jao2014b
 
 
REFERENCES
 
 
refcode metd author reference
Jao2014b C - Jao, W.-C., Henry, T.J., Subasavage, J.P., Winters, J.G., Gies, D.R., 2014AJ....147...21J
Jao2014b Riedel, A.R., & Ianna, P.A.
Jao2014b AJ 147, 21, 2014
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
18483-6856 JAO 8 2011 1 278 0.3 23.60 20.90 M5.0V+WD NO P 184820.97-685535.0
18483-6856 JAO 8 2019 2 265 0.7 23.60 20.90 M5.0V+WD NO P 184821.10-685532.0
18483-6856 JAO 8 2021 3 266 0.8 23.60 20.90 M5.0V+WD NO P 184821.10-685532.0

If you need more information about this double, apply for a data request form to the WDS.

 
 
WDS 18483-6856 JAO 8 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 18483-6856 JAO 8 : MEASURES
 
 
No records found.

 
 
WDS 18483-6856 : VIRTUAL EYEPIECE
 
 

18483-6856 JAO   8A mag 23.6 Sp M5.0V 18483-6856 JAO   8B sep 0.3 P.A. 258.70 mag 20.9 Sp WD virtual eyepiece
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Radius:
Components only
 
 
WDS 18483-6856 : ALADIN DSS IMAGE @ 18h 48m 21.10s -68° 55' 32.0"
 
 
 
 
WDS 18483-6856 JAO 8 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only


18483-6856  JAO   8 distance=0' 18522-6910  MLO  83 distance=26' 18429-6856  UC 3652 distance=30' 18474-6931  UC 3671 distance=36' 18419-6901  DON 913 distance=37' 18464-6946  TDT1048 distance=52' 18446-6947  TDT1025 distance=56' 18375-6856  LDS 643 distance=59' 18375-6850  UC 3628 distance=59' 18495-6954  TDT1074 distance=60' 18397-6814  TDT 982 distance=64' 18558-6806  KPP1437 distance=65' 18524-6957  TDT1098 distance=66' 18412-6950  UC 3637 distance=67' 18518-7005  TDT1093 distance=72' 18410-6754  TDT 991 distance=75' 18411-6752  TDT 992 distance=76' 18432-6746  DON 916 distance=76' 18379-6954  MLO  82 distance=81' 19035-6845  FIN 357 distance=83' 18397-7005  TDT 983 distance=84' 18381-7002  TDT 967 distance=86' 19014-6951  UC 3765 distance=89' 18442-6728  UC 3658 distance=91' 18301-6846  TDT 916 distance=100' 18323-6808  TDT 931 distance=101' 18358-6742  TDT 951 distance=102' 18311-6943  DON 901 distance=103' 19076-6925  DON 941 distance=105' 18593-6729  TDT1171 distance=107' 18286-6908  DON1118 distance=107' 19081-6822  LDS 664 distance=108' 19076-6928  TDT1240 distance=108' 18551-6709  UC 3721 distance=114' 18303-6758  TDT 918 distance=115' 18591-6717  TDT1165 distance=116' 18421-6705  TDS 935 distance=116' 18317-6742  MLO  81 distance=118' 18299-6753  DON 900 distance=120' 18393-7045  TDT 977 distance=120' 19084-7004  B  2467 distance=125' 18391-7058  TDT 974 distance=132' 18296-6734  DON 899 distance=133' 18431-6643  NZO  91 distance=136' 18493-7111  TDT1071 distance=136' 18357-6656  DON 909 distance=140' 19002-7104  TDS 957 distance=142' 18442-6634  UC 3657 distance=144' 18382-6638  LDS 646 distance=150' 18348-7109  TDT 943 distance=150' 19069-6706  R   318 distance=152' grafico limitrofi
Click on the map to see the double of your interest.
Pass over with the mouse cursor to display the catalog designation.

Show name coord_2000 discov# comp pa sep dist(')
Show 18483-6856 JAO 8 266 0.8
Show 18522-6910 MLO 83 238 2.4 26
Show 18429-6856 UC 3652 206 49.5 30
Show 18474-6931 UC 3671 205 6.4 36
Show 18419-6901 DON 913 156 1.0 37
Show 18464-6946 TDT1048 128 2.6 52
Show 18446-6947 TDT1025 230 0.5 56
Show 18375-6856 LDS 643 40 163.4 59
Show 18375-6850 UC 3628 305 48.7 59
Show 18495-6954 TDT1074 342 1.5 60
Show 18397-6814 TDT 982 344 0.5 64
Show 18558-6806 KPP1437 122 10.8 65
Show 18524-6957 TDT1098 198 0.6 66
Show 18412-6950 UC 3637 265 61.3 67
Show 18518-7005 TDT1093 10 0.4 72
Show 18410-6754 TDT 991 109 0.4 75
Show 18411-6752 TDT 992 117 0.9 76
Show 18432-6746 DON 916 178 4.6 76
Show 18379-6954 MLO 82 207 3.3 81
Show 19035-6845 FIN 357 149 0.2 83
Show 18397-7005 TDT 983 127 1.2 84
Show 18381-7002 TDT 967 290 0.7 86
Show 19014-6951 UC 3765 254 37.9 89
Show 18442-6728 UC 3658 330 37.8 91
Show 18301-6846 TDT 916 249 2.1 100
Show 18323-6808 TDT 931 221 1.2 101
Show 18358-6742 TDT 951 20 1.0 102
Show 18311-6943 DON 901 231 1.6 103
Show 19076-6925 DON 941 104 0.9 105
Show 18593-6729 TDT1171 343 0.6 107
Show 18286-6908 DON1118 290 4.1 107
Show 19081-6822 LDS 664 49 91.2 108
Show 19076-6928 TDT1240 135 0.4 108
Show 18551-6709 UC 3721 346 45.1 114
Show 18303-6758 TDT 918 181 1.6 115
Show 18591-6717 TDT1165 123 0.5 116
Show 18421-6705 TDS 935 282 0.9 116
Show 18317-6742 MLO 81 35 4.5 118
Show 18299-6753 DON 900 222 4.3 120
Show 18393-7045 TDT 977 138 1.2 120
Show 19084-7004 B 2467 129 1.9 125
Show 18391-7058 TDT 974 176 0.6 132
Show 18296-6734 DON 899 41 0.9 133
Show 18431-6643 NZO 91 162 1.8 136
Show 18493-7111 TDT1071 263 0.6 136
Show 18357-6656 DON 909 330 0.5 140
Show 19002-7104 TDS 957 196 1.5 142
Show 18442-6634 UC 3657 71 17.7 144
Show 18382-6638 LDS 646 135 25.0 150
Show 18348-7109 TDT 943 257 1.4 150
Show 19069-6706 R 318 110 17.3 152

 
 
WDS 18483-6856 : COMPONENTS
 
 
  A
B pa=258.7°
sep=0.28"
 
 
18483-6856 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 184821.10-685532.0 Mag 23.6 Spectral class M5.0V (red)
PmRA -34.00 PmDE -123.0
 
 
18483-6856 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 184821.05-685532.1 Mag 20.9 Spectral class WD (Wolf-Rayet)
Calc delta mag 2.7 Calc coord yes