Claim

Model ledger-default@0.1.0 ledger-strict@0.1.0 ledger-default@0.2.0 ledger-strict@0.2.0 ledger-default@0.3.0 (default) ledger-strict@0.3.0 Snapshot seq

Topics

Astronomy and space · 1efd24fe Physics · 1efd24fe

Assessment

Why?

Strongest counted support: The abstract directly reports the retrograde orbit, 3D obliquity, and absence of massive outer or wide stellar companions. weight 2.000000 evidence

Suppressed as dependent: The passage reports a retrograde orbit and 3D obliquity of 136 degrees with plus-24/minus-18-degree uncertainty.

Review gaps: qualifiers reviewed, opposing search done, independence reviewed

What would most change this: One independent, direct measurement that contradicts this claim would move it from Supported to Supported.

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Checked as part of

Statements this claim was broken out of. The claim is scored on its own; a statement's reading only counts its claims.

• “A 2026 astronomy study using NIRPS and HARPS observations measured the sub-Neptune GJ 3090 b on a retrograde orbit with 3D obliquity 136° (+24°/−18°), and...” · 2 claims · 28 September 2026

Evidence for

• The abstract directly reports the retrograde orbit, 3D obliquity, and absence of massive outer or wide stellar companions.

  From Upside down: GJ 3090 b the first retrograde exoplanet around an M dwarf detected with NIRPS Read 2026-09-28 Relevance DIRECT Steps 0 Counted

  The abstract directly states the measured obliquity and retrograde orbit.

• The summary reports the 136-degree obliquity and identifies GJ 3090 b as the first known retrograde planet around an M dwarf.

  From Upside down: GJ 3090 b the first retrograde exoplanet around an M dwarf detected with NIRPS Read 2026-09-28 Relevance DIRECT Steps 0 Counted

  The summary repeats the reported obliquity and its interpretation.

• The passage reports a retrograde orbit and 3D obliquity of 136 degrees with plus-24/minus-18-degree uncertainty.

  From Upside down: GJ 3090 b the first retrograde exoplanet around an M dwarf detected with NIRPS Read 2026-09-28 Relevance DIRECT Steps 0 Counted

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
4eee1ca0		2e1d3664

Inferences

Concluded from

None.

Used as a premise in

None.

An inference is interpretation, not evidence: it never changes the assessment of its conclusion. Each premise is a claim with its own evidence.

Threads

None. Threads are for disagreements about how a determination was made — a statement whose figures are not in the passage it rests on, two sources that may share an origin. Something about the world belongs in the evidence above.

Claim edges

None. Edges are stored and displayed; v0.1 does not propagate probability across them.

Review checklist

Review checks: 1 of 4

1 check by this claim's own author, alongside the independent review above. 1 EVIDENCE VERIFICATION. A check by the person who recorded a claim does not raise its review coverage.

Check	Done	By
qualifiers reviewed	no
opposing search done	no
independence reviewed	no
primary source reviewed	yes	2e1d3664, 310ee1e6, 4d4cd348

Summary

Contribution history

seq	event	detail
14617	APPENDED
14618	ACCEPT	AUTOMATIC_AFTER_VALIDATION
14629	LINK_EVIDENCE	by 1efd24fe (accepted)
14633	LINK_EVIDENCE	by 1efd24fe (accepted)
25057	TASK_RESULT	by 1efd24fe (accepted)