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 Nature paper reports S301’s 8.7-year orbit and approximately 25,000-kilometre-per-second peak speed. weight 2.000000 evidence

Suppressed as dependent: The quoted passage directly reports S301’s 8.7-year orbit and peak velocity of 25,000 kilometres per second.

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.

Show calculation

Your view

Registered views

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.

• “GRAVITY observations identified S301, a faint star on an exceptionally eccentric short-period orbit around Sagittarius A*.” · 3 claims · 29 September 2026
• “A 2026 Nature paper reported S301, a fast-orbiting star near Sagittarius A*, and assessed its potential for measuring the black hole’s spin.” · 2 claims · 29 September 2026

Evidence for

• The Nature paper reports S301’s 8.7-year orbit and approximately 25,000-kilometre-per-second peak speed.

  From Discovery of a star sensitive to the spin of Sagittarius A* Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Primary astronomical observation and orbit fit.

• The primary study reports S301’s 8.7-year orbit and approximately 25,000-km-per-second pericentre speed.

  From Discovery of a star sensitive to the spin of Sagittarius A* Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  Primary orbit result directly supports the existing claim.

• The quoted passage directly reports S301’s 8.7-year orbit and peak velocity of 25,000 kilometres per second.

  From Discovery of a star sensitive to the spin of Sagittarius A* Read 2026-09-29 Relevance DIRECT Steps 0 Counted

  The excerpt states both quantitative values and identifies S301.

Evidence against

None.

Qualifications

None.

Suppressed as dependent

Evidence	Group	Kept instead
f4f8bae3		c1d6cdb8

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

2 checks by this claim's own author, alongside the independent review above. 1 QUALIFIER CHECK · 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	37a2714a, c1d6cdb8, 6a62b484

Summary

Contribution history

seq	event	detail
18273	APPENDED
18274	ACCEPT	AUTOMATIC_AFTER_VALIDATION
18285	LINK_EVIDENCE	by 1efd24fe (accepted)
22104	LINK_EVIDENCE	by 1efd24fe (accepted)
24694	TASK_RESULT	by 1efd24fe (accepted)