Star • 2MASS J08411947-7857481

Cluster
eta Cha
Proposed Clusters
Alternate Names
WISEA J084119.42-785747.8
GDR2 5209038595468151168
2MASS 08411947-7857481
2MASS J08411947-7857481
HIP 42637
* eta Cha
RECX 2
Eta Cha
HD075416
[GRS2008] 02
eta Cha
SIP Output
Aladin

Fiducial Data

Parameter Value Error Unit Reference
cluster_name eta Cha [char] su2006
mem_lit_name {eta} Cha [char] su2006
ra 08 41 19.4762 h m s cutri2003
dec -78 57 48.1104 d m s cutri2003
ra_deg 130.331151 deg cutri2003
dec_deg -78.963364 deg cutri2003
pm_ra -29.776 0.216 mas/yr gaiacollaboration2018
pm_dec 26.6 0.245 mas/yr gaiacollaboration2018
plx 10.0442 0.0912 mas gaiacollaboration2018
st_dist 99.5599 0.904 pc gaiacollaboration2018
spt B8 [char] luhman2004
spt_num 18.0 [decimal allowed] luhman2004
spt_lit B8 [char] luhman2004
H_alpha 8.5 0.1nm mamajek1999
LiI_6708 0.0 0.1nm mamajek1999
Uvel -10.0 3.6 km/s bobylev2007
Vvel -17.2 8.6 km/s bobylev2007
Wvel -9.6 3.7 km/s bobylev2007
Av 0.0 mag YSOPY
Agaia 0.1073 0.057 mag gaiacollaboration2018
Teff 12500.0 2817.7 K YSOPY
log_Teff 4.097 0.09 log K YSOPY
L_star 108.186 1.97 Lsun YSOPY
log_L_star 2.034 0.02 log Lsun YSOPY
R_star 0.875 Rsun YSOPY
M_star 3.198 0.05 Msun YSOPY
log_M_star 0.505 0.01 log Msun YSOPY
age_star 3.041 6.67 Myr YSOPY
log_age_star 6.483 0.53 log yr YSOPY
disk_flag True [boolean] su2006
fdisk 9e-05 gautier2008
xray_flag True [boolean] mamajek1999
Lx 5.01187233627e+28 erg/s mamajek1999
log_Lx 28.7 log erg/s mamajek1999
B 5.335 0.003 mag bobylev2007
V 5.445 0.003 mag bobylev2007
gaia_g 5.4305 0.0012 mag gaiacollaboration2018
gaia_bp 5.407 0.0029 mag gaiacollaboration2018
gaia_rp 5.536 0.002 mag gaiacollaboration2018
tm_J 5.688 0.019 mag cutri2003
tm_H 5.721 0.04 mag cutri2003
tm_K 5.718 0.018 mag cutri2003
tm_flags "AAA,0" [char] cutri2003
J 5.68 mag lyo2003
H 5.72 mag lyo2003
K 5.75 mag lyo2003
L 5.65 mag lyo2003
S_24_fd 113.3 0.07 mJy gautier2008
S_24 4.33 0.02 mag sicilia-aguilar2009
S_70_fd 31.1 0.1 mJy gautier2008
S_70 3.87 0.13 mag sicilia-aguilar2009
W_3p4 5.76 0.139 mag wright2010
W_4p6 5.629 0.049 mag wright2010
W_12 5.294 0.016 mag wright2010
W_22 4.391 0.028 mag wright2010
wise_flags "BAAA,0000" [char] wright2010

Non Fiducial Data

Membership
cluster_name ([char])
Value Error Ref.
unknown cutri2003
mem_num ([integer])
Value Error Ref.
0 cutri2003
Motion
pm_ra (mas/yr)
Value Error Ref.
-28.89 0.16 vanleeuwen2007
-29.31 0.44 bobylev2007
pm_dec (mas/yr)
Value Error Ref.
27.21 0.16 vanleeuwen2007
27.58 0.39 bobylev2007
plx (mas)
Value Error Ref.
10.53 0.16 vanleeuwen2007
10.32 0.43 bobylev2007
st_dist (pc)
Value Error Ref.
94.97 1.44 vanleeuwen2007
96.9 4.04 bobylev2007
ObsProp
spt ([char])
Value Error Ref.
B8 skiffBMK
B8 mamajek1999
spt_num ([decimal allowed])
Value Error Ref.
18.0 skiffBMK
18.0 mamajek1999
spt_lit ([char])
Value Error Ref.
B8 skiffBMK
B8 mamajek1999
Derived Stellar Properties
Teff (K)
Value Error Ref.
11900.0 luhman2004
8847.25 724.335 gaiacollaboration2018
log_Teff (log K)
Value Error Ref.
4.08 luhman2004
L_star (Lsun)
Value Error Ref.
94.0 luhman2004
log_L_star (log Lsun)
Value Error Ref.
1.97 luhman2004
M_star (Msun)
Value Error Ref.
3.2 mamajek1999
log_M_star (log Msun)
Value Error Ref.
0.505 mamajek1999
age_star (Myr)
Value Error Ref.
8.0 su2006
log_age_star (log yr)
Value Error Ref.
6.9 su2006
Disk
fdisk
Value Error Ref.
4.74e-05 su2006
Mid-Infrared Photometry
S_24_fd (mJy)
Value Error Ref.
122.44 1.29 su2006
S_70_fd (mJy)
Value Error Ref.
34.5 0.93 su2006
Coordinates
ra (h m s)
Value Error Ref.
08 41 19.476 cutri2003
08 41 19.427 wright2010
08 41 19.513 lopez-santiago2010
08 41 19.5134 sicilia-aguilar2009
08 41 19.512 su2006
08 41 19.5134 gautier2008
08 41 19.48 luhman2004
08 41 19.5134 lyo2003
08 41 19.519 skiffBMK
08 41 19.601 vanleeuwen2007
08 41 19.5 mamajek1999
08 41 19.51346 bobylev2007
08 41 19.354 gaiacollaboration2018
dec (d m s)
Value Error Ref.
-78 57 48.11 cutri2003
-78 57 47.89 wright2010
-78 57 48.10 lopez-santiago2010
-78 57 48.096 sicilia-aguilar2009
-78 57 48.10 su2006
-78 57 48.096 gautier2008
-78 57 48.1 luhman2004
-78 57 48.096 lyo2003
-78 57 48.10 skiffBMK
-78 57 48.33 vanleeuwen2007
-78 57 48.1 mamajek1999
-78 57 48.0967 bobylev2007
-78 57 47.69 gaiacollaboration2018
ra_deg (deg)
Value Error Ref.
130.331151 60.0 cutri2003
130.3309466 54.4326 wright2010
130.33130417 lopez-santiago2010
130.33130583 sicilia-aguilar2009
130.3313 su2006
130.33130583 gautier2008
130.33116667 luhman2004
130.33130583 lyo2003
130.33133 skiffBMK
130.33167288 0.14 vanleeuwen2007
130.33125 mamajek1999
130.33130608 bobylev2007
130.33064041 0.0997 gaiacollaboration2018
dec_deg (deg)
Value Error Ref.
-78.963364 80.0 cutri2003
-78.9633015 54.6514 wright2010
-78.96336111 lopez-santiago2010
-78.96336 sicilia-aguilar2009
-78.96336 su2006
-78.96336 gautier2008
-78.96336111 luhman2004
-78.96336 lyo2003
-78.96336 skiffBMK
-78.96342632 0.15 vanleeuwen2007
-78.96336111 mamajek1999
-78.96336019 bobylev2007
-78.96324723 0.1073 gaiacollaboration2018