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Current system
20158+2749
MCA 60 AB


Nearby doubles
10' : 20165+2747
HDS2889

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BRT 47AB

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HO 591

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HDS2882AB

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HDS2898

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A 389

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MLB 706

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TDT2134

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MLB 609AB

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HO 122AB

56' : 20196+2727
MLB 610AB

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HJ 1501AB

58' : 20115+2740
TDT2067

59' : 20123+2824
TDT2081

60' : 20201+2735
TDT2179

61' : 20155+2648
TDT2124

61' : 20173+2651
TDT2143

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MLB 660

66' : 20153+2643
FOX 35

66' : 20201+2716
KPP3357

68' : 20207+2808
TDT2195

71' : 20188+2849
J 3073

72' : 20109+2719
TDT2055

74' : 20140+2859
TDS1052



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Observed
Herschel, W.
Herschel, J.F.W.
Struve, Otto
Struve, F.G.W.

20158+2749 MCA 60 AB

 
 
20h 15m 46.16s +27° 48' 51.2" P.A. 148.00 sep 0.1 mag 4.80,6.94 Sp K3-III dist. 103.84 pc (338.73 l.y.)
 
 
Coord 2000 20158+2749 Discov num MCA  60 Comp AB Coord arcsec 2000 20 15 46.16 +27 48 51.2
Date first 1980 Date last 2004 Obs 27
Pa first 141 Pa last 147.8 P.A. Now (θ) 147.8°
Sep first 0.2 Sep last 0.091 Sep. Now (ρ) 0.091"
Mag pri 4.80 Mag sec 6.94 delta mag (ΔM) 2.14 Spectral class K3-III (yellow-orange)
Pri motion ra -036 Sec motion ra
Pri motion dec +003 Sec motion dec
Notes N (See Notes)
Nature of this double is uncertain.
 
 
20158+2749 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 23 Vul 88428 20 15 46 +27 48 51 CHR 94 Aa,Ab 2007 5 331 0.0 4.80 6.50 1.70 Y
Show 88428 20 15 46 +27 48 51 MCA 60 AB 2004 27 148 0.1 4.80 6.94 2.14 <===
Triple system
2 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Vulpecula SAO 88428 HIP 99874 Tycho2 2163-01794-1
Gaia DR2 1836958616310522496 HD 192806 HR 7744 GC 28152
BD BD+27 3666 Flamsteed 23 Vulpeculae Flamsteed name 23 Vul Distance 103.84
Distance ly 338.73
 
 
WDS 20158+2749 MCA 60 AB : NOTES
 
 
discov_num notes refcode
CHR 94 23 Vul.
Aa,Ab: 1991.893: These two observations confirm the discovery
measurement of this close component, made in 1985, and indicate McA1987b
considerable motion during this interval. Hrt1994
Aa,Ab: Malkov et al. (2012) derive dynamical, photometric, and
spectroscopic masses 2.39 +/- 0.73, 6.47, and 2.40 Msun, respectively. Mlk2012
 
 
REFERENCES
 
 
refcode metd author reference
Hrt1994 Sc j Hartkopf, W.I., McAlister,H.A., Mason, B.D., Barry, D.J., Turner, N., & Fu, H.-H. 1994AJ....108.2299H
Hrt1994 AJ 108, 2299, 1994
McA1987b Sc j McAlister, H.A., Hartkopf, W.I., Hutter, D.J., & Franz, O.G. 1987AJ.....93..688M
McA1987b AJ 93, 688, 1987
Mlk2012 not - Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. 2012A&A...546A..69M
Mlk2012 A&A 546, A69, 2012
 
 
DISCOVERER
 
 
idgroup discov author
1 CHR Center for High Ang. Res. Astronomy (speckle interferometry systems)
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
20158+2749 MCA 60 AB 1998 25 145 0.2 4.80 6.94 D 201546.16+274851.2
20158+2749 MCA 60 AB 2004 26 328 0.1 4.80 6.94 D 201546.16+274851.2

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

 
 
WDS 20158+2749 MCA 60 AB : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 20158+2749 MCA 60 AB : MEASURES
 
 
No records found.

 
 
WDS 20158+2749 : VIRTUAL EYEPIECE
 
 

20158+2749 MCA 60A mag 4.8 Sp K3 20158+2749 CHR 94Ab mag 6.5 20158+2749 MCA 60B sep 0.1 P.A. 150.90 mag 6.94 Sp III virtual eyepiece
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Pass over with the mouse cursor to display the catalog designation.
Radius:
Components only
 
 
WDS 20158+2749 : ALADIN DSS IMAGE @ 20h 15m 46.16s +27° 48' 51.2"
 
 
 
 
WDS 20158+2749 MCA 60 AB : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

20158+2749 MCA 60AB distance=0' 20165+2747 HDS2889 distance=10' 20166+2806 MLB 608 distance=21' 20145+2808 BRT 47AB distance=24' 20145+2808 BRT 47AC distance=24' 20167+2729 COU1168 distance=24' 20176+2754 HO 591 distance=24' 20137+2732 HDS2882AB distance=33' 20181+2730 HDS2898 distance=36' 20160+2703 A 389 distance=46' 20128+2725 MLB 706 distance=47' 20165+2702 TDT2134 distance=48' 20195+2740 MLB 609BC distance=50' 20195+2740 MLB 609AB distance=50' 20149+2840 HO 122AB distance=53' 20149+2840 HO 122AC distance=53' 20196+2727 MLB 610AB distance=56' 20196+2727 MLB 610BC distance=56' 20186+2833 HJ 1501AB distance=58' 20186+2833 HJ 1501AC distance=58' 20115+2740 TDT2067 distance=58' 20186+2833 HJ 1501CD distance=59' 20123+2824 TDT2081 distance=59' 20201+2735 TDT2179 distance=60' 20155+2648 TDT2124 distance=61' 20173+2651 TDT2143 distance=61' 20122+2829 MLB 660 distance=62' 20153+2643 FOX 35 distance=66' 20201+2716 KPP3357 distance=66' 20207+2808 TDT2195 distance=68' 20188+2849 J 3073 distance=71' 20109+2719 TDT2055 distance=72' 20140+2859 TDS1052 distance=74' 20213+2736 TDT2202 distance=74' 20204+2702 TDT2187 distance=78' 20110+2834 COU1323 distance=78' 20184+2637 TDT2153 distance=80' 20115+2846 MLB 530 distance=80' 20098+2805 TDT2038 distance=81' 20124+2856 MLB 531 distance=81' 20175+2909 POP1229Aa,Ab distance=84' 20175+2909 BU 441AB distance=84' 20101+2712 TDT2040 distance=85' 20222+2736 MLB 611 distance=86' 20105+2841 TDT2048 distance=87' 20134+2910 TDT2100 distance=87' 20180+2913 POP 200 distance=90' 20182+2912 A 1205 distance=90' 20090+2748 MLB 705 distance=90' 20176+2622 BU 984 distance=90' 20124+2908 A 1201 distance=91' 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 20158+2749 CHR 94 Aa,Ab 331 0.0
Show 20158+2749 MCA 60 AB 148 0.1
Show 20165+2747 HDS2889 116 0.2 10
Show 20166+2806 MLB 608 227 9.3 21
Show 20145+2808 BRT 47 AB 232 4.8 24
Show 20145+2808 BRT 47 AC 215 40.4 24
Show 20167+2729 COU1168 24 0.3 24
Show 20176+2754 HO 591 293 2.7 24
Show 20137+2732 HDS2882 AB 341 0.1 33
Show 20181+2730 HDS2898 153 0.2 36
Show 20160+2703 A 389 213 1.7 46
Show 20128+2725 MLB 706 172 2.1 47
Show 20165+2702 TDT2134 16 2.5 48
Show 20195+2740 MLB 609 BC 282 17.4 50
Show 20195+2740 MLB 609 AB 280 5.5 50
Show 20149+2840 HO 122 AB 72 1.4 53
Show 20149+2840 HO 122 AC 152 19.9 53
Show 20196+2727 MLB 610 AB 26 63.3 56
Show 20196+2727 MLB 610 BC 287 8.1 56
Show 20186+2833 HJ 1501 AB 355 12.9 58
Show 20186+2833 HJ 1501 AC 349 57.3 58
Show 20115+2740 TDT2067 344 0.7 58
Show 20186+2833 HJ 1501 CD 12 20.2 59
Show 20123+2824 TDT2081 157 0.5 59
Show 20201+2735 TDT2179 161 0.7 60
Show 20155+2648 TDT2124 122 0.6 61
Show 20173+2651 TDT2143 111 0.5 61
Show 20122+2829 MLB 660 290 6.2 62
Show 20153+2643 FOX 35 248 1.9 66
Show 20201+2716 KPP3357 293 3.8 66
Show 20207+2808 TDT2195 346 0.4 68
Show 20188+2849 J 3073 16 4.5 71
Show 20109+2719 TDT2055 349 2.5 72
Show 20140+2859 TDS1052 164 1.6 74
Show 20213+2736 TDT2202 0.4 74
Show 20204+2702 TDT2187 332 0.5 78
Show 20110+2834 COU1323 334 0.8 78
Show 20184+2637 TDT2153 147 0.5 80
Show 20115+2846 MLB 530 32 7.9 80
Show 20098+2805 TDT2038 233 0.6 81
Show 20124+2856 MLB 531 195 1.7 81
Show 20175+2909 POP1229 Aa,Ab 217 0.4 84
Show 20175+2909 BU 441 AB 64 6.2 84
Show 20101+2712 TDT2040 255 1.8 85
Show 20222+2736 MLB 611 206 9.9 86
Show 20105+2841 TDT2048 136 0.6 87
Show 20134+2910 TDT2100 98 0.7 87
Show 20180+2913 POP 200 205 6.4 90
Show 20182+2912 A 1205 96 1.2 90
Show 20090+2748 MLB 705 167 2.4 90
Show 20176+2622 BU 984 160 0.2 90

 
 
WDS 20158+2749 : COMPONENTS
 
 
  A Ab
Ab pa=333.6°
sep=0.05"
 
B pa=150.9°
sep=0.09"
pa=151.8°
sep=0.13"
 
 
20158+2749 A
 
 
Coord arcsec 2000 201546.16+274851.2 Mag 4.8 Spectral class K3 (yellow-orange) PmRA -36.00
PmDE 3.0 SAO 88428 HIP 99874 Tycho2 2163-01794-1
HD 192806 HR 7744 GC 28152 BD BD+27 3666
Flamsteed 23 Vulpeculae Flamsteed name 23 Vul
Tycho2
Tycho2 2163-01794-1 Pflag RAmdeg 303.94222413 DEmdeg 27.81424753
PmRA -35.8 PmDE 7.5 E RAmdeg 3 E DEmdeg 3
E pmRA 1.1 E pmDE 1.0 EpRAm 1991.63 EpDEm 1991.69
Num 13 Q RAmdeg 0.7 Q DEmdeg 0.7 Q pmRA 0.6
Q pmDE 0.7 BTmag 6.138 E BTmag 0.014 VTmag 4.656
E VTmag 0.009 Prox 999 TYC T HIP 99874
CCDM AC RAdeg 303.94231694 DEdeg 27.81423056 EpRA 1990 1.75
EpDE 1990 1.83 E RAdeg 3.2 E DEdeg 3.1 Posflg P
Corr 0.1
SAO
SAO 88428 DelFlag RA1950 PmRA1950 -0.0028
DE1950 PmDE1950 0.011 Vmag 4.7 SpType K5
Double code Source 70 CatNum 28152 DM BD+27 3666
DMcomp BDsup HD 192806 M HD 0
GC 28152 RA1950rad 5.29574387 DE1950rad 0.48275425 PmRA2000 -0.0027
PmDE2000 0.008
Hipparcos
Catalog H HIP 99874 Proxy H RAhms 20 15 46.16
DEdms +27 48 51.2 Vmag 4.5 VarFlag R Vmag H
RAdeg 303.942 DEdeg 27.8142 AstroRef * Plx 9.94
CCDM 20158+2749 N CCDM M Nsys 1 Ncomp 2
MultFlag C Source Qual A M HIP AC
Theta 142 Rho 0.261 HD 192806 BD BD+27 3666
CD CP Dm number +27 3666 VIred 1.3
SpType K3III R SpType Coord arcsec 2000 201546.16+274851.2
Hipparcos 2
HIP 99874 Sn 55 So 3 Nc 2
RArad 5.3047942647 DErad 0.4854498664 Plx 9.63 PmRA -34.27
PmDE 6.41 E RArad 0.21 E DErad 0.28 E Plx 0.46
E pmRA 0.25 E pmDE 0.32 Hpmag 4.654 E Hpmag 0.0005
SHp 0.006 VA 0 BV 1.258 E BV 0.001
VI 1.3
CCDM
Ccdm 20158+2749 RComp Comp A Note1
Note2 Discov num DRAs -1.95 DDEs -8.3
R dRAs 10 Year Theta Rho
Obs 3 Vmag 4.5 Sp K3 PmNote *
PmRA -38 PmDE 12 Dm number +27 3666 Cat1 BD
Name2 +27 2156 Cat2 AGK2/3 HD 192806 M HD
ADS BDS M ADS BDS N IDS W IDS 20158+2749A
HIC 99874
 
 
20158+2749 Ab
 
 
Coord arcsec 2000 201546.16+274851.2 Mag 6.5 Calc delta mag 1.7 Calc coord yes
 
 
20158+2749 B
 
 
Coord arcsec 2000 201546.16+274851.1 Mag 6.94 Spectral class III Calc delta mag 2.14
Calc coord yes
CCDM
Ccdm 20158+2749 RComp Comp B Note1
Note2 Discov num CHR 94 DRAs DDEs
R dRAs Year 1989 Theta 11 Rho 0.1
Obs 1 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS W IDS 20158+2749P
HIC 99874