Planet Day Length Lookup
Independently verified planet sidereal/solar rotation sign and period convention. Exact independently verified context/edition key; not embedded or live reference data. Model only, not an ephemeris, measured stellar identity or observational guarantee.
Description
Planetary day length can mean different rotation or solar-day conventions.
Planetary day length can mean different rotation or solar-day conventions.1
A verified notice should state the period definition and sign convention. Use Planet Day Length Lookup to retrieve an exact caller-supplied reference entry.
When to use Planet Day Length Lookup
Use Planet Day Length Lookup to retrieve an exact caller-supplied reference entry. Choose an independently reviewed reference for the exact historical, cultural or technical context, then supply its keys and texts.
How to use Planet Day Length Lookup and understand its results
- Choose an independently reviewed reference for the exact historical, cultural or technical context, then supply its keys and texts.
- Enter Caller verified planet rotation keys, Caller verified planet rotation notices, Query planet rotation key using the field table and validation rules below, then run the tool.
- Read Matched caller notice; interpret the units, signs, ordering and unknown-value placeholders described below.
- Correct reported input errors and rerun. Apply successful results according to their specific meanings and check the assumptions before using them in a decision.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| callerVerifiedPlanetRotationKeys | Caller verified planet rotation keys | array of string | Required; constraints below |
| callerVerifiedPlanetRotationNotices | Caller verified planet rotation notices | array of string | Required; constraints below |
| queryPlanetRotationKey | Query planet rotation key | string | Required; constraints below |
Provide aligned, nonempty arrays of reference keys and independently verified notices, then enter the exact query key. Keys must be unique, nonblank and at most 128 UTF-16 code units long; notices must be nonblank. Matching is case sensitive and does not trim the query or returned text. The matching notice is returned unchanged; an unknown key is an input error. The reference contents and their applicability are supplied by the caller; the tool does not retrieve external records or verify source authority.
matched reference = suppliedTexts[indexOfExactQueryKey(suppliedKeys)] Use the field order, units and branch conditions described above.
| Output field | Meaning | Value type |
|---|---|---|
| matchedCallerNotice | Exact caller-supplied notice, unchanged and unverified. | string |
{
"input": {
"callerVerifiedPlanetRotationKeys": [
"context-a/edition-a",
"context-a/edition-b"
],
"callerVerifiedPlanetRotationNotices": [
"independently verified reference a",
"independently verified reference b"
],
"queryPlanetRotationKey": "context-a/edition-b"
},
"output": {
"matchedCallerNotice": "independently verified reference b"
}
}Limitations and assumptions
A verified notice should state the period definition and sign convention. Apply the exact scope and assumptions explained above.
All listed fields require explicit values. Unexpected fields, incorrect types, nonfinite numbers and sparse arrays fail validation. Domain-specific bounds, alignments and supported tokens are explained above; extremely large inputs or outputs can also be rejected. Input errors differ from successful false results, empty match lists and unknown-evidence placeholders.
Alternative or Complementary methods
Use Planet Year Length Lookup for a related task: A planet's year needs an orbital-period convention and reference epoch.
Use Planet Surface Gravity Lookup for a related task: Planetary surface gravity depends on the reference surface and rotational convention.
References
-
Planet Day Length Lookup — tool.io
Similar or alternative tools
- Planet Year Length Lookup
A planet's year needs an orbital-period convention and reference epoch.
- Planet Surface Gravity Lookup
Planetary surface gravity depends on the reference surface and rotational convention.