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ASTERIA
Asteria registry

Meridian Thorn

A meridian is a line of reference; a thorn, a small sharp point upon it.

Official designation: pending verificationRegistry name, not an IAU name

Procedural illustration — not a measured shape

  • S-type
  • Available at launch
  • Celestial tier
  • Near-Earth object
  • Preview data

It grazes Earth's neighbourhood — and never crosses.

Indicative launch price

0.38 ETH

Planned for the launch sale.

Indicative only and not an offer. Currency, final price and fees are planned and subject to legal review.

Join the waitlist

Marketplace opens in Phase 3 — join the waitlist. Tokens are digital collectibles and registry entries; they convey no ownership of the asteroid.

01Vital statistics

Measured in light and motion

Each figure is catalogued or derived from the orbit with standard formulas — period from Kepler's third law, brightness from size and albedo. Preview data until verification.

Orbits explainedSpectral classes

Diameter

01

1.3km

Mean width of the body, end to end.

≈ 12 football pitches laid end to end

Geometric albedo

02

0.22

How reflective the surface is, compared with an ideal white disc.

Within the typical S-type range (0.10–0.30)

Rotation period

03

7.4h

The length of its day — one full spin on its axis.

Spins ≈ 3.2 times in one Earth day

Absolute magnitude H

04

16.7

Intrinsic brightness, from size and albedo. Lower is brighter.

≈ 220,000× fainter than Ceres at the same distance

Orbital period

05

2.70yr

One lap around the Sun, from Kepler’s third law.

A year here lasts ≈ 987 Earth days

Perihelion · Aphelion

06

q1.24AU

Q2.64AU

Closest and farthest distance from the Sun. 1 AU is the Sun–Earth distance.

Sunlight is ≈ 4.5× stronger at perihelion than at aphelion

Mean orbital speed

07

21.4km/s

Average speed along the orbit (circular approximation).

Would cross Earth’s diameter in ≈ 9.9 minutes

Inclination

08

9.8°

Tilt of the orbit against the ecliptic, the plane of Earth’s orbit.

≈ 1.9× the tilt of the Moon’s orbit (5.1°)

02Orbit

Its path around the Sun

Drawn to scale with the Sun at one focus. The body moves by Kepler's equation — fast near the Sun, slow far from it — while the planets keep their true relative pace.

To scale · Kepler-correct motion

Side view

i = 9.8°

tilt to the ecliptic

  • Meridian Thorn
  • Sun
  • Mercury
  • Venus
  • Earth
  • Mars
  • Jupiter
  • Main belt
r
1.6 AU
v
25.6 km/s
t
+0 yr
1 yr ≈
7.4 s

Live distance from the Sun (r) and orbital speed (v, from the vis-viva equation). It quickens near perihelion — Kepler’s second law.

Orbit class

Amor

Near-Earth object

Approaches Earth from outside without crossing its orbit (1.017 < perihelion < 1.3 AU).

Orbital elements
SymbolElementValue
aSemi-major axisAverage distance from the Sun1.94 AU
eEccentricity0 is a circle; closer to 1, more stretched0.36
iInclinationTilt to the ecliptic9.8°
qPeriheliona (1 − e)1.242 AU
QApheliona (1 + e)2.638 AU
POrbital periodP² = a³ (Kepler’s third law)2.7 yr
Orbit classDerived from q, Q, a and iAmor
Preview values · orientation in the diagram is illustrative
03Story

The story of Meridian Thorn

An Amor-class asteroid: it approaches Earth's orbit from the outside, turning back before it crosses. A measured, elegant path.

Registry note · ASR-0006

The name

Meridian Thorn

A meridian is a line of reference; a thorn, a small sharp point upon it.

An Asteria registry name. Official minor-planet names are approved by the IAU's Working Group Small Bodies Nomenclature and cannot be bought. Registry vs official names

Composition

S-typeSilicaceous

Stony silicates (olivine, pyroxene) mixed with nickel-iron metal.

Bright, stony bodies that dominate the inner main belt. Many ordinary-chondrite meteorites found on Earth are linked to S-type parents.

Typical S-type albedoThis body
Spectral classes, explained
04Certificate

A certificate for the name

At launch, each registry entry is planned to come with a digital certificate. This live preview is built from this entry's data.

Registry name “Meridian Thorn” and ID ASR-0006

Spectral class, 1.3 km diameter and Amor orbit

An optional personal dedication line

A reference to the token that records it (planned)

Preview render — final design subject to change. A certificate records an Asteria registry name; it is not an IAU designation and does not convey ownership of the asteroid.
05Token metadata

The record, in plain JSON

This is the metadata a token for this entry would carry when minting opens. Nothing has been minted yet.

Schema v1.0.0ERC-721 · planned

name · description · image

Standard ERC-721 metadata fields that wallets and marketplaces already understand.

attributes

Traits such as spectral class, orbit class and tier, ready for filtering.

asteria

The full registry record: orbit, physical data, name meaning, data sources.

disclaimer

Stated in the token itself: a registry name, not an official one; no property right.

ipfs://<cid> is a placeholder: media is planned to be pinned to IPFS at mint.

Read the metadata schema
ASR-0006.json

{"name": "Meridian Thorn (ASR-0006)","description": "It grazes Earth's neighbourhood — and never crosses. An Amor-class asteroid: it approaches Earth's orbit from the outside, turning back before it crosses. A measured, elegant path. Registry name assigned by Asteria; not an IAU-recognised name. This token is a digital collectible and confers no ownership of any celestial body.","image": "ipfs://<cid>/ASR-0006.png","animation_url": "ipfs://<cid>/ASR-0006.mp4","external_url": "https://asteriaasteroids.xyz/explore/meridian-thorn","attributes": [{"trait_type": "Spectral class","value": "S-type"},{"trait_type": "Orbit class","value": "Amor"},{"trait_type": "Tier","value": "Celestial"},{"trait_type": "Near-Earth object","value": "Yes"},{"trait_type": "Diameter (km)","value": 1.3,"display_type": "number"},{"trait_type": "Albedo","value": 0.22,"display_type": "number"},{"trait_type": "Rotation period (h)","value": 7.4,"display_type": "number"},{"trait_type": "Orbital period (yr)","value": 2.7,"display_type": "number"}],"asteria": {"schema_version": "1.0.0","registry_id": "ASR-0006","registry_name": "Meridian Thorn","name_meaning": "A meridian is a line of reference; a thorn, a small sharp point upon it.","official_designation": null,"spectral_class": "S","orbit": {"orbit_class": "Amor","semi_major_axis_au": 1.94,"eccentricity": 0.36,"inclination_deg": 9.8,"perihelion_au": 1.242,"aphelion_au": 2.638,"period_years": 2.702},"physical": {"diameter_km": 1.3,"geometric_albedo": 0.22,"rotation_period_h": 7.4,"absolute_magnitude_h": 16.69},"data_sources": ["To be linked on verification: JPL Small-Body Database, Minor Planet Center"],"disclaimer": "Registry name only; not an official IAU designation. No property right in any celestial body is conveyed."}}
06Registry status

Where this entry stands today

An honest status line. Nothing on this page has been minted or sold — the marketplace is planned for Phase 3.

Hear when minting opens

No spam. One email when the marketplace opens.

  1. 01

    Catalogued

    Complete · preview

    Orbit, size, albedo and spectral class recorded in the preview catalogue. Period, brightness and orbit class are computed from them.

    Data & sources
  2. 02

    Verification

    Pending

    To be cross-checked against public small-body databases such as the JPL Small-Body Database and the Minor Planet Center. Official designation: pending verification.

  3. 03

    Registry entry

    Preview

    Registry ID ASR-0006 and the name “Meridian Thorn” are held in the preview registry. The permanent on-chain registry is planned.

    Registry vs official names
  4. 04

    Token mint

    Planned

    One ERC-721 token per entry, carrying the metadata above. Chain, contracts and a third-party audit come first.

    Roadmap
  5. 05

    Named

    Planned

    The naming ceremony and its digital certificate open with the marketplace in Phase 3.

    How naming works