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Current system
21379+2743
SKF 245 AC


Nearby doubles
25' : 21386+2720
KPP 497

27' : 21399+2737
HDS3083

38' : 21361+2716
MLB 620

38' : 21396+2712
GRV 489

45' : 21390+2826
ES 520

46' : 21353+2812
CHR 103

47' : 21368+2701
MLB 621

53' : 21420+2741
RAO 465AB

55' : 21342+2804
NSN 66AB

60' : 21423+2800
GRV 494

66' : 21331+2751
UC 4494

69' : 21353+2646
MLB 717

75' : 21435+2725
BKO 631

77' : 21401+2632
BRT3367

77' : 21435+2721
A 299AB

79' : 21439+2751
HO 166

84' : 21382+2620
UC 4516

85' : 21320+2814
TDT3012

86' : 21361+2622
UC 4505

86' : 21359+2622
HJ 1661

87' : 21346+2856
J 2352

88' : 21363+2617
PHL 1

90' : 21384+2614
TDT3074

94' : 21418+2901
MLB 492

95' : 21444+2824
KPP3373

97' : 21363+2917
BRT 56



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

21379+2743 SKF 245 AC

 
 
21h 38m 00.38s +27° 43' 25.4" P.A. 16.00 sep 3.3 mag 9.90,15.00 Sp M1V dist. 13.32 pc (43.45 l.y.)
 
 
Coord 2000 21379+2743 Discov num SKF 245 Comp AC Coord arcsec 2000 21 38 00.38 +27 43 25.4
Date first 1999 Date last 2016 Obs 14
Pa first 23 Pa last 16.4 P.A. Now (θ) 16.4°
Sep first 2.7 Sep last 3.338 Sep. Now (ρ) 3.338"
Mag pri 9.90 Mag sec 15.00 delta mag (ΔM) 5.1 Spectral class M1V (red)
Pri motion ra +481 Sec motion ra +453
Pri motion dec -063 Sec motion dec -080
Notes N T (See Notes, Parallax indicates physical)
rPM=0.068 (< 0.3, Physical double)
This double is physical.
 
 
21379+2743 SYSTEM COMPONENTS
 
 
Show name SAO coord wds_name last obs pa sep mag1 mag2 d_mag orb current
Show 21 38 00 +27 43 25 HDS 3080 Aa,Ab 1991 1 109 0.2 10.17 11.75 1.58 Y
Show 21 38 00 +27 43 25 MLB 1093 AB 2007 17 268 26.7 9.95 12.71 2.76
Show 21 38 00 +27 43 25 SKF 245 AC 2016 14 16 3.3 9.90 15.00 5.10 <===
Quadruple system
3 estimated visually detectable stars in this system
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Pegasus HIP 106811 Tycho2 2197-00752-1 GL Gl 835
BD BD+27 4120 Distance 13.32 Distance ly 43.45
 
 
WDS 21379+2743 SKF 245 AC : NOTES
 
 
discov_num notes refcode
MLB1093 AB: COU 13.
HDS3080 Aa,Ab: CC 1299
Marginal detection of 14th mag secondary, but mass-sum too large and
more GB obs needed to define orbit. (HIP solution is slit-error). Sod1999
McCarthy (1983) says he resolved this pair using IR speckle Mcy1983
interferometry at 2.2 and 3.4 microns, but does not include any values
for rho or theta.
 
 
REFERENCES
 
 
refcode metd author reference
Mcy1983 Si - McCarthy, D.W. 1983nssl.conf..107M
Mcy1983 +C IAU Colloq 76, 107, 1983
Sod1999 orb - Soderhjelm, S. 1999A&A...341..121S
Sod1999 A&A 341, 121, 1999
 
 
DISCOVERER
 
 
idgroup discov author
1 HDS Hipparcos Double Star (from additional DD list)
1 MLB Milburn, W. (Espin, T.E.)
48 SKF Skiff, B.A.
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
21379+2743 SKF 245 AC 1999 1 23 2.7 9.90 15.00 M0.5V N 213800.07+274326.1
21379+2743 SKF 245 AC 2000 1 23 2.7 9.80 14.30 213800.07+274326.1
21379+2743 SKF 245 AC 2008 3 18 3.1 9.90 15.00 M0.5V N 213800.07+274326.1
21379+2743 SKF 245 AC 2009 5 21 3.2 9.90 15.00 M0.5V N 213800.07+274326.1
21379+2743 SKF 245 AC 2015 6 16 3.3 9.90 15.00 M0.5V N 213800.38+274325.4
21379+2743 SKF 245 AC 2016 7 16 3.3 9.90 15.00 M1V NT 213800.38+274325.4

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

 
 
WDS 21379+2743 SKF 245 AC : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 21379+2743 SKF 245 AC : MEASURES
 
 
No records found.

 
 
WDS 21379+2743 : VIRTUAL EYEPIECE
 
 

21379+2743 MLB1093A mag 9.95 Sp M1V 21379+2743 HDS3080Ab sep 0.1 P.A. 111.30 mag 11.75 21379+2743 MLB1093B sep 23.6 P.A. 267.40 mag 12.71 21379+2743 SKF 245C sep 3.3 P.A. 14.60 mag 15 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 21379+2743 : ALADIN DSS IMAGE @ 21h 38m 00.38s +27° 43' 25.4"
 
 
 
 
WDS 21379+2743 SKF 245 AC : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

21379+2743 SKF 245AC distance=0' 21386+2720 KPP 497 distance=25' 21399+2737 HDS3083 distance=27' 21361+2716 MLB 620 distance=38' 21396+2712 GRV 489 distance=38' 21390+2826 ES 520 distance=45' 21353+2812 CHR 103 distance=46' 21368+2701 MLB 621 distance=47' 21420+2741 RAO 465Aa,Ab distance=53' 21420+2741 RAO 465AB distance=53' 21342+2804 NSN 66AB distance=55' 21423+2800 GRV 494 distance=60' 21331+2751 UC 4494 distance=66' 21353+2646 MLB 717 distance=69' 21435+2725 BKO 631 distance=75' 21401+2632 BRT3367 distance=77' 21435+2721 A 299AB distance=77' 21435+2721 A 299AD distance=77' 21435+2721 A 299BC distance=77' 21439+2751 HO 166 distance=79' 21435+2721 OSO 155DG distance=82' 21435+2721 A 299DE distance=82' 21435+2721 A 299DF distance=82' 21382+2620 UC 4516 distance=84' 21320+2814 TDT3012 distance=85' 21361+2622 UC 4505 distance=86' 21359+2622 HJ 1661 distance=86' 21346+2856 J 2352 distance=87' 21363+2617 PHL 1 distance=88' 21384+2614 TDT3074 distance=90' 21418+2901 MLB 492 distance=94' 21444+2824 KPP3373 distance=95' 21363+2917 BRT 56 distance=97' 21311+2705 GRV 472 distance=100' 21453+2722 HO 606 distance=100' 21356+2918 GRV 481 distance=101' 21416+2911 GRV 493 distance=101' 21441+2845 STF2822BD distance=102' 21441+2845 STF2822AB distance=102' 21441+2845 STF2822AC distance=102' 21441+2845 STF2822AD distance=102' 21441+2845 FYM 25AF distance=102' 21441+2845 FYM 25AG distance=102' 21454+2819 J 3145 distance=104' 21442+2631 BUP 230CD distance=104' 21410+2920 STT 448 distance=105' 21441+2845 ES 521DE distance=105' 21441+2845 FYM 25DG distance=105' 21301+2719 TDT2999 distance=109' 21401+2928 BRT 57 distance=109' 21457+2708 BKO 633 distance=109' 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 21379+2743 HDS3080 Aa,Ab 109 0.2
Show 21379+2743 MLB1093 AB 268 26.7
Show 21379+2743 SKF 245 AC 16 3.3
Show 21386+2720 KPP 497 205 4.6 25
Show 21399+2737 HDS3083 337 0.2 27
Show 21361+2716 MLB 620 242 7.5 38
Show 21396+2712 GRV 489 229 51.9 38
Show 21390+2826 ES 520 36 9.3 45
Show 21353+2812 CHR 103 110 0.2 46
Show 21368+2701 MLB 621 44 3.2 47
Show 21420+2741 RAO 465 Aa,Ab 128 0.3 53
Show 21420+2741 RAO 465 AB 303 2.6 53
Show 21342+2804 NSN 66 AB 275 4.0 55
Show 21423+2800 GRV 494 323 62.9 60
Show 21331+2751 UC 4494 264 26.9 66
Show 21353+2646 MLB 717 133 4.2 69
Show 21435+2725 BKO 631 26 5.9 75
Show 21401+2632 BRT3367 310 4.5 77
Show 21435+2721 A 299 AB 67 1.1 77
Show 21435+2721 A 299 AD 64 374.5 77
Show 21435+2721 A 299 BC 325 0.1 77
Show 21439+2751 HO 166 233 0.2 79
Show 21435+2721 OSO 155 DG 304 6.1 82
Show 21435+2721 A 299 DE 95 999.9 82
Show 21435+2721 A 299 DF 26 145.8 82
Show 21382+2620 UC 4516 318 24.9 84
Show 21320+2814 TDT3012 210 2.1 85
Show 21361+2622 UC 4505 144 36.8 86
Show 21359+2622 HJ 1661 84 11.9 86
Show 21346+2856 J 2352 247 6.4 87
Show 21363+2617 PHL 1 310 12.1 88
Show 21384+2614 TDT3074 135 2.4 90
Show 21418+2901 MLB 492 114 7.0 94
Show 21444+2824 KPP3373 242 2.1 95
Show 21363+2917 BRT 56 306 3.2 97
Show 21311+2705 GRV 472 238 34.8 100
Show 21453+2722 HO 606 93 18.4 100
Show 21356+2918 GRV 481 184 64.0 101
Show 21416+2911 GRV 493 184 44.7 101
Show 21441+2845 STF2822 BD 45 196.7 102
Show 21441+2845 STF2822 AB 325 1.6 102
Show 21441+2845 STF2822 AC 292 76.6 102
Show 21441+2845 STF2822 AD 43 197.0 102
Show 21441+2845 FYM 25 AF 72 111.5 102
Show 21441+2845 FYM 25 AG 73 168.1 102
Show 21454+2819 J 3145 112 5.4 104
Show 21442+2631 BUP 230 CD 32 277.1 104
Show 21410+2920 STT 448 31 0.1 105
Show 21441+2845 ES 521 DE 286 17.5 105
Show 21441+2845 FYM 25 DG 164 89.6 105
Show 21301+2719 TDT2999 355 0.9 109

 
 
WDS 21379+2743 : COMPONENTS
 
 
  A Ab B
Ab pa=111.3°
sep=0.15"
 
B pa=267.4°
sep=23.60"
pa=267.5°
sep=23.74"
 
C pa=14.6°
sep=3.31"
pa=12.0°
sep=3.33"
pa=80.1°
sep=24.79"
 
 
21379+2743 A
 
 
Coord arcsec 2000 213800.38+274325.4 Mag 9.95 Spectral class M1V (red) PmRA 472.00
PmDE -75.0 HIP 106811 Tycho2 2197-00752-1 BD BD+27 4120
Tycho2
Tycho2 2197-00752-1 Pflag RAmdeg 324.50158961 DEmdeg 27.72380289
PmRA 462.9 PmDE -48.9 E RAmdeg 22 E DEmdeg 28
E pmRA 2.3 E pmDE 2.3 EpRAm 1990.54 EpDEm 1989.98
Num 4 Q RAmdeg 0.9 Q DEmdeg 1.0 Q pmRA 0.9
Q pmDE 1.0 BTmag 11.726 E BTmag 0.074 VTmag 10.042
E VTmag 0.031 Prox 999 TYC T HIP 106811
CCDM AC RAdeg 324.50039333 DEdeg 27.72391139 EpRA 1990 1.75
EpDE 1990 1.80 E RAdeg 23.0 E DEdeg 28.7 Posflg P
Corr 0.0
Hipparcos
Catalog H HIP 106811 Proxy H RAhms 21 38 00.07
DEdms +27 43 26.1 Vmag 9.83 VarFlag R Vmag G
RAdeg 324.5 DEdeg 27.7239 AstroRef * Plx 76.07
CCDM 21380+2743 N CCDM I Nsys 1 Ncomp 2
MultFlag C Source Qual C M HIP AC
Theta 109 Rho 0.167 HD BD BD+27 4120
CD CP Dm number +27 4120 VIred 1.52
SpType R SpType Coord arcsec 2000 213800.07+274326.1
Hipparcos 2
HIP 106811 Sn 55 So 3 Nc 2
RArad 5.663598775 DErad 0.4838737824 Plx 75.09 PmRA 471.53
PmDE -75.12 E RArad 1.36 E DErad 1.21 E Plx 1.89
E pmRA 1.69 E pmDE 1.38 Hpmag 9.9431 E Hpmag 0.0038
SHp 0.031 VA 0 BV 1.495 E BV 0.009
VI 1.52
 
 
21379+2743 Ab
 
 
Coord arcsec 2000 213800.39+274325.3 Mag 11.75 Calc delta mag 1.58 Calc coord yes
 
 
21379+2743 B
 
 
Coord arcsec 2000 213758.60+274324.3 Mag 12.71 Calc delta mag 2.54 Calc coord yes
 
 
21379+2743 C
 
 
Coord arcsec 2000 213800.44+274328.6 Mag 15 PmRA 453.00 PmDE -80.0
Calc delta mag 4.83 Calc coord yes