logo targets LTT 1445 A c and GJ 3929b confirmed to be observed.
Rocky Worlds DDT: Targets
Targets Under Consideration (TUC) Targets Under Consideration
Introduction
To date, the Rocky Worlds DDT program has selected 2 targets to perform observations: GJ 3929 b and LTT 1445 A c. JWST observations are expected to be performed to obtain secondary eclipse measurements with 15 μm photometry, while HST/UV observations are expected to be obtained to form a panchromatic spectrum of the host stars, as well as to monitor possible stellar flares.
Future possible targets, expected to be selected no later than September 2025, will be drawn from the Targets Under Consideration (TUC), a list that compiles possible targets that are relevant to the DDT program. This TUC list has been curated thanks to contributions from the community, the Core Implementation Team (CIT) at STScI and the Rocky World’s DDT Scientific Advisory Committee (SAC). These very same contributions will be used to define the next set of targets to be observed by the DDT.
The TUC plot and table
Below is a plot of 80 targets that are being considered for observation by the Rocky Worlds DDT. The plot and table are interactive. Here are some instructions on using the Bokeh plot. You may also highlight targets on the table to see their location in the plot.
  • slides Download   download the complete TUC table
  • lasso Select targets with a lasso
  • lasso Zoom in
  • lasso Tap an individual target
  • lasso Reset to original plot
  • lasso Activate hover option
Bokeh Plot Screenshot
The interactive plot is only available in a wider screen
preview

Planet Earth and the Moon as seen by NASA's Voyager 1 on September 18, 1977.

Current RW Selected Targets Current RW Selected Targets
Parent
Star
Planet Radius
(R)
Mass
(M)
Period
(Days)
Kmag Teff
(K)
a/R RP /R Teq
(K)
Priority
Metricη
LTT 1445 A LTT 1445 A cΨ 1.10 1.37 3.12 6.5 3340 21.1 0.036 514 -0.2283
Image
Stellar Parameters
Name
LTT 1445 A
RA
03 01 51.4
hms
DEC
−16 35 36.0
° ′ ″
Radius
0.271
R
Mass
0.257
M
Exoplanet Parameters
Name
LTT 1445 A c
Teff
3340
K
Period
3.12
days
Radius
1.10
R
Mass
1.37
M
useful links
GJ 3929 GJ 3929 bΨ 1.09 1.21 2.62 7.9 3384 16.8 0.033 584 -0.2937
Image
Stellar Parameters
Name
GJ 3929
RA
15 58 18.8
hms
DEC
+35 24 24.3
° ′ ″
Radius
1.09
R
Mass
1.21
M
Exoplanet Parameters
Name
GJ 3929 b
Teff
3384
K
Period
2.62
days
Radius
1.09
R
Mass
1.21
M
useful links
Ψ : Target already in at least one JWST program; observing mode(s) may or may not include emission photometry at 15 μm.
η : The Priority Metric calculated here is used to provide an initial ranking to each target in the TUC.