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Doubles in session


Current system
16254+3724
CHR 55
25 Her


Nearby doubles
19' : 16240+3716
SLW1177

25' : 16270+3708
COU1139

26' : 16242+3702
STF2044

31' : 16254+3755
STT 310

36' : 16284+3724
HJ 261

39' : 16255+3645
KPP2113

40' : 16280+3659
KPP2428

41' : 16287+3714
COU1140

41' : 16269+3801
ALI 864

44' : 16231+3650
LDS4662

44' : 16253+3808
NSN 678

51' : 16229+3803
COU1281

53' : 16246+3632
HO 405AB

60' : 16229+3815
KU 53

62' : 16273+3626
KU 112

64' : 16226+3819
PKO 15

67' : 16251+3830
TDS9886

70' : 16242+3616
CVR1665

70' : 16281+3825
CVR 824

70' : 16216+3631
COU 982

74' : 16205+3640
WAA 47

77' : 16309+3804
STF2059

78' : 16263+3841
SKF2387

84' : 16234+3844
LDS4664

87' : 16318+3805
CBL 508

92' : 16327+3752
CVR 832



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

16254+3724 CHR 55 (25 Her)

 
 
16h 25m 24.17s +37° 23' 38.7" P.A. 133.00 sep 0.1 mag 5.60,8.30 Sp A5V+G0 dist. 74.46 pc (242.89 l.y.)
 
 
Coord 2000 16254+3724 Discov num CHR  55 Comp Coord arcsec 2000 16 25 24.17 +37 23 38.7
Date first 1985 Date last 2007 Obs 16
Pa first 355 Pa last 132.9 P.A. Now (θ) 132.9°
Sep first 0.2 Sep last 0.077 Sep. Now (ρ) 0.077"
Mag pri 5.60 Mag sec 8.30 delta mag (ΔM) 2.7 Spectral class A5V+G0 (white/yellow)
Pri motion ra +006 Sec motion ra
Pri motion dec -012 Sec motion dec
Notes N O (See Notes, Orbital solution)
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Name 25 Her Constellation Hercules SAO 65290 HIP 80460
Tycho2 2587-00070-1 Gaia DR2 1331198076578089728 HD 148283 HR 6123
GC 22108 BD BD+37 2750 Flamsteed 25 Herculis Flamsteed name 25 Her
FK5 3296 Distance 74.46 Distance ly 242.89
 
 
ORBITAL ELEMENTS
 
 
Period (P)76.32y± 50 Periastron (T)1989.98y± 0.05 Semi-major axis (a)0.357a± 0.013
Eccentricity (e)0.691± 0.008 Inclination (i)96.6°± 0.5 Longitude of periastron (ω)292.5°± 1.5
Node (Ω)177.5°± 0.5 Notesn ReferenceDoc2010h
Equinox2000 Last observation2007 Grade4(1=Definitive, 9=Indet.)
label theta rho
2000 164.3 0.155
2001 162.1 0.145
2002 159.6 0.135
2003 156.6 0.124
2004 153.0 0.112
2005 148.6 0.101
2006 143.1 0.090
2007 136.3 0.080
2008 127.5 0.071
2009 116.6 0.064
2010 103.6 0.060
2011 89.5 0.059
2012 75.6 0.062
2013 63.5 0.067
2014 53.5 0.075
2015 45.7 0.085
2016 39.5 0.095
2017 34.6 0.107
2018 30.6 0.119
2019 27.4 0.131
2020 24.8 0.143
2021 22.5 0.155
2022 20.6 0.168
2023 18.9 0.180
2024 17.5 0.192
2025 16.2 0.204
2026 15.1 0.216
2027 14.1 0.227
2028 13.1 0.238
2029 12.3 0.249
2030 11.5 0.260


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


 
  


wds16254%2B3724c.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 16254+3724 CHR 55 (25 Her) : NOTES
 
 
discov_num notes refcode
CHR 55 25 Her. A component is a shell star. Strong a/e-correlation, more
speckle observations are needed.
Docobo et al. (2010) derive a dynamic parallax of 12.63 +/- 0.30 mas Doc2010h
and a total mass of 3.87 +/- 0.71 Msun.
 
 
REFERENCES
 
 
refcode metd author reference
Doc2010h S j Docobo, J.A., Tamazian, V.S., Balega, Y.Y., & Melikian, N.D. 2010AJ....140.1078D
Doc2010h +orb AJ 140, 1078, 2010
 
 
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
16254+3724 CHR 55 2005 14 145 0.1 5.50   A5V NO 162524.17+372338.7
16254+3724 CHR 55 2007 15 133 0.1 5.60 8.30 A5V G0 NOD 162524.17+372338.7

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

 
 
WDS 16254+3724 CHR 55 (25 Her) : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 16254+3724 CHR 55 (25 Her) : MEASURES
 
 
No records found.

 
 
WDS 16254+3724 (25 Her) : VIRTUAL EYEPIECE
 
 

16254+3724 CHR 55A mag 5.6 Sp A5V 16254+3724 CHR 55B sep 0.1 P.A. 139.50 mag 8.3 Sp G0 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 16254+3724 (25 Her) : ALADIN DSS IMAGE @ 16h 25m 24.17s +37° 23' 38.7"
 
 
 
 
WDS 16254+3724 CHR 55 (25 Her) : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

16254+3724 CHR 55 distance=0' 16240+3716 SLW1177 distance=19' 16270+3708 COU1139 distance=25' 16242+3702 STF2044 distance=26' 16254+3755 STT 310 distance=31' 16284+3724 HJ 261 distance=36' 16255+3645 KPP2113 distance=39' 16280+3659 KPP2428 distance=40' 16287+3714 COU1140 distance=41' 16269+3801 ALI 864 distance=41' 16231+3650 LDS4662 distance=44' 16253+3808 NSN 678 distance=44' 16229+3803 COU1281 distance=51' 16246+3632 HO 405AB distance=53' 16246+3632 HO 405AC distance=53' 16229+3815 KU 53 distance=60' 16273+3626 KU 112 distance=62' 16226+3819 PKO 15 distance=64' 16251+3830 TDS9886 distance=67' 16242+3616 CVR1665 distance=70' 16281+3825 CVR 824 distance=70' 16216+3631 COU 982 distance=70' 16205+3640 WAA 47 distance=74' 16309+3804 STF2059 distance=77' 16263+3841 SKF2387 distance=78' 16234+3844 LDS4664 distance=84' 16318+3805 CBL 508 distance=87' 16327+3752 CVR 832 distance=92' 16328+3650 LDS4677 distance=94' 16193+3612 KPP3996 distance=103' 16173+3804 KPP 364 distance=104' 16199+3600 COU 981 distance=107' 16202+3557 SLW1172 distance=107' 16312+3849 COU1282 distance=110' 16290+3543 CVR1666 distance=110' 16220+3908 COU1279 distance=112' 16194+3854 CVR 817 distance=115' 16352+3721 PAR 2 distance=117' 16261+3524 HDS2321 distance=120' 16248+3925 HU 1276 distance=122' 16354+3655 BU 952AB distance=124' 16354+3655 BU 952AD distance=124' 16354+3655 BU 952BC distance=124' 16299+3915 TDS9931 distance=124' 16272+3521 COU 984 distance=126' 16182+3857 HU 1275 distance=126' 16220+3524 CVR 185 distance=127' 16363+3727 GRV1222 distance=131' 16333+3855 STF2067 distance=131' 16148+3801 LDS4657 distance=132' 16364+3748 LDS4680 distance=134' 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 16254+3724 CHR 55 133 0.1
Show 16240+3716 SLW1177 176 20.2 19
Show 16270+3708 COU1139 297 1.6 25
Show 16242+3702 STF2044 340 8.4 26
Show 16254+3755 STT 310 223 3.1 31
Show 16284+3724 HJ 261 102 21.4 36
Show 16255+3645 KPP2113 281 17.1 39
Show 16280+3659 KPP2428 252 21.2 40
Show 16287+3714 COU1140 354 0.8 41
Show 16269+3801 ALI 864 59 8.4 41
Show 16231+3650 LDS4662 72 54.9 44
Show 16253+3808 NSN 678 182 1.7 44
Show 16229+3803 COU1281 37 0.2 51
Show 16246+3632 HO 405 AB 343 4.2 53
Show 16246+3632 HO 405 AC 339 13.0 53
Show 16229+3815 KU 53 49 5.3 60
Show 16273+3626 KU 112 276 57.2 62
Show 16226+3819 PKO 15 32 2.5 64
Show 16251+3830 TDS9886 329 0.5 67
Show 16242+3616 CVR1665 107 4.2 70
Show 16281+3825 CVR 824 176 17.4 70
Show 16216+3631 COU 982 247 0.4 70
Show 16205+3640 WAA 47 82 1.6 74
Show 16309+3804 STF2059 179 0.3 77
Show 16263+3841 SKF2387 147 1.4 78
Show 16234+3844 LDS4664 302 75.1 84
Show 16318+3805 CBL 508 250 26.0 87
Show 16327+3752 CVR 832 218 12.9 92
Show 16328+3650 LDS4677 118 64.0 94
Show 16193+3612 KPP3996 314 2.0 103
Show 16173+3804 KPP 364 342 3.5 104
Show 16199+3600 COU 981 132 1.1 107
Show 16202+3557 SLW1172 2 157.3 107
Show 16312+3849 COU1282 273 2.6 110
Show 16290+3543 CVR1666 66 3.6 110
Show 16220+3908 COU1279 28 1.6 112
Show 16194+3854 CVR 817 326 10.9 115
Show 16352+3721 PAR 2 337 6.5 117
Show 16261+3524 HDS2321 266 0.5 120
Show 16248+3925 HU 1276 278 0.4 122
Show 16354+3655 BU 952 AB 151 3.2 124
Show 16354+3655 BU 952 AD 265 91.9 124
Show 16354+3655 BU 952 BC 194 5.2 124
Show 16299+3915 TDS9931 307 0.5 124
Show 16272+3521 COU 984 356 0.6 126
Show 16182+3857 HU 1275 168 2.9 126
Show 16220+3524 CVR 185 357 25.9 127
Show 16363+3727 GRV1222 343 21.2 131
Show 16333+3855 STF2067 297 2.9 131
Show 16148+3801 LDS4657 297 9.1 132
Show 16364+3748 LDS4680 261 21.2 134

 
 
WDS 16254+3724 : COMPONENTS
 
 
  A
B pa=139.5°
sep=0.07"
 
 
16254+3724 A
 
 
Componente originario normalizzato AB Name 25 Her Coord arcsec 2000 162524.17+372338.7 Mag 5.6
Spectral class A5V (white) PmRA 6.00 PmDE -12.0 SAO 65290
HIP 80460 Tycho2 2587-00070-1 HD 148283 HR 6123
GC 22108 BD BD+37 2750 Flamsteed 25 Herculis Flamsteed name 25 Her
FK5 3296
Tycho2
Tycho2 2587-00070-1 Pflag RAmdeg 246.35070919 DEmdeg 37.39405677
PmRA 6.4 PmDE -10.1 E RAmdeg 3 E DEmdeg 3
E pmRA 1.3 E pmDE 1.4 EpRAm 1991.47 EpDEm 1991.51
Num 15 Q RAmdeg 1.0 Q DEmdeg 1.3 Q pmRA 0.9
Q pmDE 1.3 BTmag 5.749 E BTmag 0.014 VTmag 5.554
E VTmag 0.009 Prox 999 TYC T HIP 80460
CCDM RAdeg 246.35069028 DEdeg 37.39408028 EpRA 1990 1.57
EpDE 1990 1.60 E RAdeg 3.4 E DEdeg 3.4 Posflg
Corr -0.2
SAO
SAO 65290 DelFlag RA1950 PmRA1950 -0.0002
DE1950 PmDE1950 -0.012 Vmag 5.5 SpType A3
Double code Source 70 CatNum 22108 DM BD+37 2750
DMcomp BDsup HD 148283 M HD 0
GC 22108 RA1950rad 4.29184706 DE1950rad 0.65461794 PmRA2000 0.0002
PmDE2000 -0.009
Hipparcos
Catalog H HIP 80460 Proxy RAhms 16 25 24.17
DEdms +37 23 38.7 Vmag 5.53 VarFlag R Vmag H
RAdeg 246.351 DEdeg 37.3941 AstroRef Plx 12.73
CCDM N CCDM Nsys Ncomp 1
MultFlag G Source Qual M HIP
Theta Rho HD 148283 BD BD+37 2750
CD CP Dm number +37 2750 VIred 0.17
SpType A5V R SpType Coord arcsec 2000 162524.17+372338.7
Hipparcos 2
HIP 80460 Sn 7 So 1 Nc 1
RArad 4.299630666 DErad 0.6526497929 Plx 13.43 PmRA 2.33
PmDE -0.64 E RArad 0.3 E DErad 0.36 E Plx 0.41
E pmRA 0.37 E pmDE 0.43 Hpmag 5.5906 E Hpmag 0.0008
SHp 0.006 VA 0 BV 0.174 E BV 0.004
VI 0.19
CCDM
Ccdm 16254+3724 RComp Comp A Note1
Note2 Discov num DRAs 0.17 DDEs -21.5
R dRAs 81 Year Theta Rho
Obs 2 Vmag 5.5 Sp A5 PmNote @
PmRA 6 PmDE -12 Dm number +37 2750 Cat1 BD
Name2 +37 1479 Cat2 AGK2/3 HD 148283 M HD
ADS BDS M ADS BDS N IDS W IDS 16254+3724A
HIC 80460
 
 
16254+3724 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 162524.17+372338.6 Mag 8.3 Spectral class G0 (yellow)
Calc delta mag 2.7 Calc coord yes
CCDM
Ccdm 16254+3724 RComp Comp B Note1 &
Note2 Discov num CHR 55 DRAs DDEs
R dRAs Year 1992 Theta 178 Rho 0.1
Obs 7 Vmag Sp PmNote
PmRA PmDE Dm number Cat1
Name2 Cat2 HD M HD
ADS BDS M ADS BDS N IDS W IDS 16254+3724B
HIC 80460