Star • GDR1 5209019830754189184

Cluster
eta Cha
Proposed Clusters
Alternate Names
eta Cha 13
[GRS2008] 13
GDR2 5209019835050998784
2MASS 08414471-7902531
WISEA J084144.58-790252.9
GDR1 5209019830754189184
RECX 13
[MHL2005] 13
HD 75505
[LS 2004] 13
2MASS J08414471-7902531
SIP Output
Aladin

Fiducial Data

Parameter Value Error Unit Reference
cluster_name eta Cha [char] mentuch2008
ra 08 41 44.5436 h m s gaiacollaboration2016
dec -79 02 52.8514 d m s gaiacollaboration2016
ra_deg 130.43559821 deg gaiacollaboration2016
dec_deg -79.04801428 deg gaiacollaboration2016
pm_ra -30.746 0.059 mas/yr gaiacollaboration2018
pm_dec 27.038 0.084 mas/yr gaiacollaboration2018
plx 9.9987 0.0327 mas gaiacollaboration2018
st_dist 100.013 0.3271 pc gaiacollaboration2018
spt A1 [char] luhman2004
spt_num 21.0 [decimal allowed] luhman2004
spt_lit A1 [char] luhman2004
LiI_6708 0.426 0.023 0.1nm mentuch2008
Av 0.016 mag YSOPY
Agaia 0.1657 0.1783 mag gaiacollaboration2018
Teff 9200.0 1547.3 K YSOPY
log_Teff 3.964 0.06 log K YSOPY
L_star 11.446 0.12 Lsun YSOPY
log_L_star 1.059 0.01 log Lsun YSOPY
R_star 0.154 Rsun YSOPY
M_star 1.805 0.01 Msun YSOPY
log_M_star 0.256 0.0 log Msun YSOPY
age_star 12.116 10.49 Myr YSOPY
log_age_star 7.083 0.32 log yr YSOPY
log_g 3.68 0.05 log cm/s2 mentuch2008
log_nLi 2.89 0.07 dex mentuch2008
V 7.27 mag lawson2001
Rc 7.21 mag lawson2001
Ic 7.12 mag lawson2001
gaia_g 7.3564 0.0004 mag gaiacollaboration2018
gaia_bp 7.4621 0.0019 mag gaiacollaboration2018
gaia_rp 7.233 0.0031 mag gaiacollaboration2018
tm_J 7.059 0.026 mag cutri2003
tm_H 6.987 0.036 mag cutri2003
tm_K 6.928 0.023 mag cutri2003
tm_flags "AAA,0" [char] cutri2003
J 7.1 mag lyo2003
H 7.02 mag lyo2003
K 7.0 mag lyo2003
L 6.81 mag lyo2003
S_3p6 6.97 0.01 mag sicilia-aguilar2009
S_4p5 6.97 0.01 mag sicilia-aguilar2009
S_5p8 6.97 0.01 mag sicilia-aguilar2009
S_8 6.97 0.01 mag sicilia-aguilar2009
S_24_fd 10.41 0.04 mJy gautier2008
S_24 6.97 0.06 mag sicilia-aguilar2009
W_3p4 6.948 0.06 mag wright2010
W_4p6 6.953 0.02 mag wright2010
W_12 6.977 0.015 mag wright2010
W_22 6.964 0.062 mag wright2010
wise_flags "AAAA,hh00" [char] wright2010

Non Fiducial Data

Membership
cluster_name ([char])
Value Error Ref.
unknown gaiacollaboration2016
mem_num ([integer])
Value Error Ref.
0 gaiacollaboration2016
Motion
pm_ra (mas/yr)
Value Error Ref.
-30.602 0.31 gaiacollaboration2016
pm_dec (mas/yr)
Value Error Ref.
27.298 0.301 gaiacollaboration2016
plx (mas)
Value Error Ref.
10.53 0.476 gaiacollaboration2016
st_dist (pc)
Value Error Ref.
94.97 4.293 gaiacollaboration2016
ObsProp
spt ([char])
Value Error Ref.
A5 lawson2001
A1 skiffBMK
spt_num ([decimal allowed])
Value Error Ref.
25.0 lawson2001
21.0 skiffBMK
spt_lit ([char])
Value Error Ref.
A5 lawson2001
A1V skiffBMK
Derived Stellar Properties
Teff (K)
Value Error Ref.
8000.0 riviere-marichalar2015
3139.0 11.0 mentuch2008
9230.0 luhman2004
8222.0 lawson2001
8142.67 224.625 gaiacollaboration2018
log_Teff (log K)
Value Error Ref.
3.9 riviere-marichalar2015
3.5 0.01 mentuch2008
3.97 luhman2004
3.91 lawson2001
L_star (Lsun)
Value Error Ref.
7.2 4.0 riviere-marichalar2015
13.0 luhman2004
10.471 lawson2001
log_L_star (log Lsun)
Value Error Ref.
0.857 0.48 riviere-marichalar2015
1.11 luhman2004
1.01999 lawson2001
R_star (Rsun)
Value Error Ref.
1.59 lawson2001
Optical Photometry
gaia_g (mag)
Value Error Ref.
7.373 gaiacollaboration2016
Mid-Infrared Photometry
S_3p6 (mag)
Value Error Ref.
6.97 0.01 megeath2005
S_4p5 (mag)
Value Error Ref.
6.97 0.01 megeath2005
S_5p8 (mag)
Value Error Ref.
6.97 0.01 megeath2005
S_8 (mag)
Value Error Ref.
6.97 0.01 megeath2005
Coordinates
ra (h m s)
Value Error Ref.
08 41 44.544 gaiacollaboration2016
08 41 44.716 cutri2003
08 41 44.588 wright2010
08 41 44.7057 riviere-marichalar2015
08 41 45.600 lopez-santiago2010
08 41 44.7057 sicilia-aguilar2009
08 41 44.7057 gautier2008
08 41 44.7057 mentuch2008
08 41 44.7057 megeath2005
08 41 44.72 luhman2004
08 41 44.7057 lyo2003
08 41 44.7057 lawson2001
08 41 44.710 skiffBMK
08 41 44.538 gaiacollaboration2018
dec (d m s)
Value Error Ref.
-79 02 52.85 gaiacollaboration2016
-79 02 53.15 cutri2003
-79 02 52.99 wright2010
-79 02 53.256 riviere-marichalar2015
-79 03 36.00 lopez-santiago2010
-79 02 53.256 sicilia-aguilar2009
-79 02 53.256 gautier2008
-79 02 53.256 mentuch2008
-79 02 53.256 megeath2005
-79 02 53.1 luhman2004
-79 02 53.256 lyo2003
-79 02 53.256 lawson2001
-79 02 53.30 skiffBMK
-79 02 52.84 gaiacollaboration2018
ra_deg (deg)
Value Error Ref.
130.43559821 0.3 gaiacollaboration2016
130.436315 60.0 cutri2003
130.4357846 41.6946 wright2010
130.43627375 riviere-marichalar2015
130.44 lopez-santiago2010
130.43627375 sicilia-aguilar2009
130.43627375 gautier2008
130.43627375 mentuch2008
130.43627375 megeath2005
130.43633333 luhman2004
130.43627375 lyo2003
130.43627375 lawson2001
130.43629 skiffBMK
130.43557597 0.0288 gaiacollaboration2018
dec_deg (deg)
Value Error Ref.
-79.04801428 0.412 gaiacollaboration2016
-79.048096 80.0 cutri2003
-79.0480533 41.088 wright2010
-79.04812667 riviere-marichalar2015
-79.06 lopez-santiago2010
-79.04812667 sicilia-aguilar2009
-79.04812667 gautier2008
-79.04812667 mentuch2008
-79.04812667 megeath2005
-79.04808333 luhman2004
-79.04812667 lyo2003
-79.04812667 lawson2001
-79.04814 skiffBMK
-79.04801066 0.0403 gaiacollaboration2018

All young stellar objects welcome!

Site Credits  •  Contact Us

California Institue of Technology