stampa
Login

About to create a great list of doubles? Share it with other users!
Create your account here


Search



Actions
Advanced Search
Go to Simbad
New report
New measure
Login


Computed Lists
Populars
Latest Populars
Doubles in session


Current system
04238-0414
BUG 7


Nearby doubles
34' : 04223-0349
BRT 365

37' : 04222-0441
STF 536

40' : 04243-0452
RST4239

41' : 04246-0452
STF 543

48' : 04233-0500
HJ 342AB

61' : 04202-0345
YSC 30

62' : 04230-0314
UC 1157

80' : 04271-0311
RST4240

80' : 04236-0534
HJ 2229

81' : 04217-0300
RST4238

93' : 04204-0257
TVB 70

95' : 04281-0524
KPP2719

97' : 04297-0335
J 709

101' : 04221-0551
A 473

103' : 04302-0337
J 1087

114' : 04251-0222
UC 1165

116' : 04305-0315
RST4242

120' : 04302-0303
PRB 2

120' : 04188-0242
STF 525AB

120' : 04303-0306
RST4241

123' : 04198-0228
BAL 29

124' : 04257-0214
BU 403

124' : 04289-0236
BRT 366

135' : 04220-0626
J 1459

139' : 04245-0632
GWP 581

139' : 04321-0314
ARN 60



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.

04238-0414 BUG 7

 
 
04h 23m 48.58s -04° 14' 03.5" P.A. 183.00 sep 0.1 mag 15.80,16.33 Sp L6.5+T2
 
 
Coord 2000 04238-0414 Discov num BUG   7 Comp Coord arcsec 2000 04 23 48.58 -04 14 03.5
Date first 2004 Date last 2008 Obs 4
Pa first 20 Pa last 183.1 P.A. Now (θ) 183.1°
Sep first 0.2 Sep last 0.083 Sep. Now (ρ) 0.083"
Mag pri 15.80 Mag sec 16.33 delta mag (ΔM) 0.53 Spectral class L6.5+T2 (very deep red/brown dwarf)
Pri motion ra Sec motion ra
Pri motion dec Sec motion dec
Notes N O K (See Notes, Orbital solution, K-band or other infrared magnitudes)
Visually invisible, K-band or other infrared star : Summary line gives K-band or other infrared (>1 micron) magnitudes
This double is physical.
 
 
OTHER CATALOGS AND DESIGNATIONS
 
 
Constellation Eridanus
 
 
ORBITAL ELEMENTS
 
 
Period (P)12.3y± 0.06 Periastron (T)58977d (2020.349y)± 20 Semi-major axis (a)162.6m± 0.5
Eccentricity (e)0.27± 0.008 Inclination (i)65.2°± 0.3 Longitude of periastron (ω)97.5°± 0.3
Node (Ω)34.33°± 0.23 Notesn ReferenceDup2017
Equinox Last observation2010 Grade5(1=Definitive, 9=Indet.)
label theta rho
2000 253.6 0.114
2001 285.0 0.090
2002 325.6 0.092
2003 354.9 0.119
2004 12.4 0.149
2005 25.0 0.164
2006 37.2 0.150
2007 57.2 0.099
2008 135.9 0.051
2009 198.2 0.109
2010 216.4 0.148
2011 230.1 0.148
2012 247.0 0.123
2013 274.0 0.095
2014 313.8 0.088
2015 347.7 0.110
2016 7.9 0.141
2017 21.4 0.161
2018 33.3 0.158
2019 49.3 0.118
2020 99.8 0.054
2021 188.6 0.090
2022 211.9 0.141
2023 225.9 0.151
2024 241.2 0.132
2025 264.3 0.103
2026 301.4 0.086
2027 339.2 0.101
2028 2.9 0.132
2029 17.8 0.157
2030 29.7 0.162


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


 
  


wds04238-0414a.png orbit plot
Measures: green=micrometric, blue=interferometric, purple=photographic		  
 
 
WDS 04238-0414 BUG 7 : NOTES
 
 
discov_num notes refcode
BUG 7 SDSS J042348.57-041403.5
Estimated spectral types are L6.5 + T2, effective temperatures 1490
+/- 100 and 1250 +/- 80 K. Masses are estimated at 0.039-0.062 and
0.029-0.051 Msun, and the orbital period (assuming the semi-major axis
= 1.26 * rho) is ~19yr. Bug2006a
 
 
REFERENCES
 
 
refcode metd author reference
Bug2006a Hn j Burgasser, A.J., Kirkpatrick, J.D., Cruz, K.L. Reid, I.N., Leggett, S.K., Liebert, 2006ApJS..166..585B
Bug2006a +E2 J., Burrows, A., & Brown, M.E.
Bug2006a ApJS 166, 585, 2006
Dup2017 A j Dupuy, T.J. & Liu, M.C. 2017ApJS..231...15D
Dup2017 +orb ApJS 231, 15, 2017
 
 
WDS HISTORIC DATA
 
 
coord_2000 discov_num comp epoch obs pa sep mag_pri mag_sec spectr notes coord_arcsec_2000
04238-0414 BUG 7 2004 1 19 0.2 15.80 16.33 L6.5+T2 N K 042348.58-041403.5
04238-0414 BUG 7 2007 2 97 0.1 15.80 16.33 L6.5+T2 N K 042348.58-041403.5
04238-0414 BUG 7 2008 4 183 0.1 15.80 16.33 L6.5+T2 NO K 042348.58-041403.5

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

 
 
WDS 04238-0414 BUG 7 : VISUAL OBSERVATIONS REPORTS
 
 
No records found.


 
 
WDS 04238-0414 BUG 7 : MEASURES
 
 
No records found.

 
 
WDS 04238-0414 : VIRTUAL EYEPIECE
 
 

04238-0414 BUG 7A mag 15.8 Sp L6.5 04238-0414 BUG 7B sep 0.1 P.A. 183.10 mag 16.33 Sp T2 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 04238-0414 : ALADIN DSS IMAGE @ 04h 23m 48.58s -04° 14' 03.5"
 
 
 
 
WDS 04238-0414 BUG 7 : NEIGHBORHOODS
 
 
FoV:
Limit:
Primaries only

04238-0414 BUG 7 distance=0' 04223-0349 BRT 365 distance=34' 04222-0441 STF 536 distance=37' 04243-0452 RST4239 distance=40' 04246-0452 STF 543 distance=41' 04233-0500 HJ 342AB distance=48' 04233-0500 HJ 342AC distance=48' 04202-0345 YSC 30 distance=61' 04230-0314 UC 1157 distance=62' 04271-0311 RST4240 distance=80' 04236-0534 HJ 2229 distance=80' 04217-0300 RST4238 distance=81' 04204-0257 TVB 70 distance=93' 04281-0524 KPP2719 distance=95' 04297-0335 J 709 distance=97' 04221-0551 A 473 distance=101' 04302-0337 J 1087 distance=103' 04251-0222 UC 1165 distance=114' 04305-0315 RST4242 distance=116' 04302-0303 PRB 2 distance=120' 04188-0242 STF 525AB distance=120' 04188-0242 STF 525AC distance=120' 04188-0242 STF 525BC distance=120' 04303-0306 RST4241 distance=120' 04198-0228 BAL 29 distance=123' 04257-0214 BU 403 distance=124' 04289-0236 BRT 366 distance=124' 04220-0626 J 1459 distance=135' 04245-0632 GWP 581 distance=139' 04321-0314 ARN 60 distance=139' 04234-0634 J 708 distance=141' 04326-0313 H 6 64 distance=146' 04163-0237 TDS2803 distance=149' 04320-0243 RST4243 distance=153' 04150-0538 ZIE 4 distance=157' 04342-0433 A 113 distance=157' 04268-0143 UC 1168 distance=158' 04138-0509 BWL 14Aa,Ab distance=160' 04138-0509 BWL 14AB distance=160' 04256-0651 LDS 842 distance=161' 04197-0644 RST4236 distance=162' 04142-0528 TVB 65 distance=162' 04346-0346 RST4245 distance=165' 04233-0700 TDS2840 distance=167' 04143-0245 TDS2792 distance=168' 04130-0503 CVR 450 distance=170' 04259-0124 STF 547CD distance=172' 04259-0124 STF 547AB distance=173' 04259-0124 STF 547AC distance=173' 04355-0428 WIS 107 distance=175' 04231-0117 BU 402AB distance=178' 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 04238-0414 BUG 7 183 0.1
Show 04223-0349 BRT 365 306 5.0 34
Show 04222-0441 STF 536 193 1.6 37
Show 04243-0452 RST4239 108 0.8 40
Show 04246-0452 STF 543 193 4.9 41
Show 04233-0500 HJ 342 AB 234 17.4 48
Show 04233-0500 HJ 342 AC 80 22.3 48
Show 04202-0345 YSC 30 113 0.2 61
Show 04230-0314 UC 1157 47 63.2 62
Show 04271-0311 RST4240 44 1.5 80
Show 04236-0534 HJ 2229 243 5.6 80
Show 04217-0300 RST4238 272 0.3 81
Show 04204-0257 TVB 70 60 14.3 93
Show 04281-0524 KPP2719 355 2.2 95
Show 04297-0335 J 709 90 1.7 97
Show 04221-0551 A 473 201 2.7 101
Show 04302-0337 J 1087 17 3.0 103
Show 04251-0222 UC 1165 281 13.4 114
Show 04305-0315 RST4242 83 0.8 116
Show 04302-0303 PRB 2 140 999.9 120
Show 04188-0242 STF 525 AB 244 45.3 120
Show 04188-0242 STF 525 AC 235 48.0 120
Show 04188-0242 STF 525 BC 170 7.9 120
Show 04303-0306 RST4241 54 2.0 120
Show 04198-0228 BAL 29 194 12.0 123
Show 04257-0214 BU 403 81 0.9 124
Show 04289-0236 BRT 366 272 4.8 124
Show 04220-0626 J 1459 240 3.0 135
Show 04245-0632 GWP 581 47 95.1 139
Show 04321-0314 ARN 60 29 46.7 139
Show 04234-0634 J 708 283 2.6 141
Show 04326-0313 H 6 64 117 122.9 146
Show 04163-0237 TDS2803 258 0.5 149
Show 04320-0243 RST4243 24 2.4 153
Show 04150-0538 ZIE 4 93 1.9 157
Show 04342-0433 A 113 345 4.1 157
Show 04268-0143 UC 1168 257 25.3 158
Show 04138-0509 BWL 14 Aa,Ab 277 0.1 160
Show 04138-0509 BWL 14 AB 108 3.2 160
Show 04256-0651 LDS 842 280 3.0 161
Show 04197-0644 RST4236 92 1.3 162
Show 04142-0528 TVB 65 356 11.3 162
Show 04346-0346 RST4245 153 1.6 165
Show 04233-0700 TDS2840 196 0.7 167
Show 04143-0245 TDS2792 217 0.6 168
Show 04130-0503 CVR 450 70 8.7 170
Show 04259-0124 STF 547 CD 228 24.9 172
Show 04259-0124 STF 547 AB 119 7.6 173
Show 04259-0124 STF 547 AC 258 214.2 173
Show 04355-0428 WIS 107 273 618.9 175
Show 04231-0117 BU 402 AB 76 9.6 178

 
 
WDS 04238-0414 : COMPONENTS
 
 
  A
B pa=183.1°
sep=0.08"
 
 
04238-0414 A
 
 
Componente originario normalizzato AB Coord arcsec 2000 042348.58-041403.5 Mag 15.8 Spectral class L6.5 (very deep red)
 
 
04238-0414 B
 
 
Componente originario normalizzato AB Coord arcsec 2000 042348.58-041403.6 Mag 16.33 Spectral class T2 (brown dwarf)
Calc delta mag 0.53 Calc coord yes