The N brightest stars by apparent magnitude in the whole sky or in one constella...
https://star-catalog.x402tookit.com/brightest-starsOverview
The N brightest stars by apparent magnitude in the whole sky or in one constellation (name or IAU code).
Protocol
x402
Price
$0.02
Payment Asset
USD Coin
Payment Network
eip155:8453
Category
uncategorized
Provider
Star Catalog
Source
bazaar
Indexed
2026-11-02 04:13:50
Health
Status
unknown
Latency (p50)
—
Uptime (30d)
—
Reliability Score
—
Last Checked
Never
Last Healthy
Never
Consecutive Failures
0
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Payment Requirements
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Asset Verified
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Facilitator
—
Input Schema
{
"method": "GET",
"queryParams": {
"n": 5
},
"type": "http"
}
Output Schema
{
"example": {
"asOf": "2026-10-21T05:44:16.362Z",
"attribution": "Star data: HYG database v4.1 by David Nash (astronexus), CC BY-SA 4.0; bright (V<=6.5) and nearest-200 subset, built 2026-10-21.",
"constellation": null,
"degraded": false,
"disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
"notChecked": [
"stars fainter than magnitude 6.5",
"variable stars at their current brightness (the catalogue value is one mean or maximum value)",
"…1 more"
],
"reasons": [
"Lower magnitude means brighter."
],
"source": "HYG database v4.1 (CC BY-SA 4.0: Hipparcos, Yale Bright Star, Gliese), computed locally",
"stars": [
{
"absoluteMagnitude": 1.454,
"apparentMagnitude": -1.44,
"colorIndexBV": 0.009,
"constellation": "Canis Major",
"constellationAbbr": "CMa",
"decDeg": -16.71612,
"designations": {
"bayer": "Alpha Canis Majoris",
"flamsteed": "9 Canis Majoris",
"gliese": "Gl 244A",
"hd": 48915,
"hip": 32349,
"hr": 2491,
"proper": "Sirius"
},
"distanceLightYears": 8.6,
"distanceParsecs": 2.6371,
"epoch": "J2000.0",
"luminositySolar": 22.824,
"name": "Sirius",
"parallaxMas": 379.2,
"properMotionDecMasPerYr": -1223.08,
"properMotionRaMasPerYr": -546.01,
"raDeg": 101.28722,
"raHours": 6.75248,
"radialVelocityKmS": -9.4,
"rank": 1,
"spectralType": "A0m..."
},
{
"absoluteMagnitude": -5.504,
"apparentMagnitude": -0.62,
"colorIndexBV": 0.164,
"constellation": "Carina",
"constellationAbbr": "Car",
"decDeg": -52.69566,
"designations": {
"bayer": "Alpha Carinae",
"flamsteed": null,
"gliese": null,
"hd": 45348,
"hip": 30438,
"hr": 2326,
"proper": "Canopus"
},
"distanceLightYears": 309.15,
"distanceParsecs": 94.7867,
"epoch": "J2000.0",
"luminositySolar": 13854.792,
"name": "Canopus",
"parallaxMas": 10.55,
"properMotionDecMasPerYr": 23.67,
"properMotionRaMasPerYr": 19.99,
"raDeg": 95.98792,
"raHours": 6.39919,
"radialVelocityKmS": 21,
"rank": 2,
"spectralType": "F0Ib"
}
],
"summary": "Brightest: Sirius (-1.44), Canopus (-0.62), Arcturus (-0.05).",
"verdict": "RANKED"
},
"type": "json"
}