Systems loaded
108
Confirmed host systems ready for chart plotting.
A star chart plotter for real nearby systems
Plot a course to nearby worlds. Explore the actual data.
Cosmoplot works like a sailing chart plotter for the sky: pick a fix, read the bearing and distance, then inspect the catalog evidence, uncertainty, and model labels behind the object.
Planets organized
175
Planet records connected to source labels, uncertainty, and detail cards.
Sampling radius
18 pc
Solar-neighborhood chart volume around the Sun, plus researched systems plotted beyond it.
Source of truth
NASA Solar System Exploration
Each claim stays anchored to catalog and cache provenance.
Chart Plotter Flow
Pick a fix, read the chart, then check the claim
The interface gives casual visitors a clear path in while preserving the distinction between measurements, calculations, model output, and planning guidance.
Plot a Fix
Start from reliable chart points, then branch into nearby systems, Solar System planets, or deep-sky anchors.
Read the Bearings
Place each object in a shared Sun-centered chart so distance, direction, and selection feel coherent.
Check the Evidence
Separate what was measured, what was calculated, and what still needs follow-up without blending them together.
Compare Next Legs
Use the optimizer and detail cards to compare promising worlds without treating the shortlist as an observing program.
Loading star field…
Lockout Target Optimizer
A balanced shortlist for follow-up attention
Lockout reviews the current catalog for promising targets, then favors a mix of strong signals, useful brightness, and less-redundant observing modes.
#1 · GJ 1148
GJ 1148 b
Score
100.0
Signal
355 ppm
Temp
233 K
score 100.0/100 · signal 355 ppm · J 7.61 · K 6.82 · T_eq 233 K · JWST follow-up gap
NIRISS SOSSNIRSpec G395H BOTS
#2 · GJ 682
GJ 682 b
Score
99.1
Signal
90 ppm
Temp
285 K
score 99.1/100 · signal 90 ppm · J 6.54 · K 5.61 · T_eq 285 K · JWST follow-up gap
NIRISS SOSSNIRSpec G395H BOTS
#3 · GJ 1265
GJ 1265 b
Score
98.0
Signal
256 ppm
Temp
426 K
score 98.0/100 · signal 256 ppm · J 8.96 · K 8.12 · T_eq 426 K · JWST follow-up gap
NIRISS SOSSNIRSpec G395H BOTS
#4 · GJ 581
GJ 581 b
Score
95.8
Signal
287 ppm
Temp
464 K
score 95.8/100 · signal 287 ppm · J 6.71 · K 5.84 · T_eq 464 K · JWST follow-up gap
NIRISS SOSSNIRSpec G395H BOTS
#5 · L 98-59
L 98-59 d
Score
95.3
Signal
96 ppm
Temp
416 K
score 95.3/100 · signal 96 ppm · J 7.93 · K 7.10 · T_eq 416 K · JWST follow-up gap
NIRISS SOSSNIRSpec G395H BOTS
#6 · GJ 682
GJ 682 c
Score
94.6
Signal
100 ppm
Temp
190 K
score 94.6/100 · signal 100 ppm · J 6.54 · K 5.61 · T_eq 190 K · JWST follow-up gap
NIRISS SOSSNIRSpec G395H BOTS
Support Cosmoplot
Help keep the chart plotter alive and improving
If Cosmoplot is useful for outreach, education, or research conversations, you can join updates and help support the chart plotter behind it.
Supporter Intake
Let interested visitors raise a hand and stay connected as the project grows.
Donation Routing
Give supporters a clear path to updates or donations without locking the site to one vendor.
Sustainability Layer
Keep the chart plotter moving from a one-off showcase toward a maintained public science tool.