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Common comet 18 EP

C/2005 H1 (LINEAR)

Position computed live · sbdb

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Live ephemeris

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Score breakdown

· 3 badges
18 pts · Common
Common 22 pts → Uncommon
  • Has a proper name +8
  • Comet +6
  • Steeply tilted orbit (i > 40°) +4
Total score 18

4 more points to reach Uncommon.

Badges

  • Comet · +6
  • Has a proper name · +8
  • Steeply tilted orbit (i > 40°) · +4

Trivia

What it actually is

  • Its orbit family. A long-period comet falling in from the Oort Cloud, where it spent billions of years in the deep freeze before something nudged it loose.
  • Closest approach. At its nearest it comes within 4.77 AU of the Sun — inside the orbit of Jupiter.
  • One lap. A single orbit around the Sun takes it about 315 years.
  • How far it roams. Its orbit swings between 4.77 and 87.75 AU from the Sun.

Standing on it

  • Tail. Its tail always points away from the Sun, never trailing behind its motion — it is blown, not dragged.

By the numbers

  • Made of. A comet is a dirty snowball: water ice, frozen carbon dioxide and dust, held together loosely enough that some simply crumble when the Sun warms them.

What's in a name

  • Named. Notable enough to have earned a proper name, not just a catalogue number.

Properties

aphelion au
87.76
designation
2005 H1
eccentricity
0.8969
full name
C/2005 H1 (LINEAR)
inclination
81.51
mean motion deg day
0.0031
moid au
4.55
name
C/2005 H1 (LINEAR)
named
yes
orbit class
COM
perihelion au
4.769
semi major au
46.26

About C/2005 H1 (LINEAR)

C/2005 H1 (LINEAR) is a common comet. It swings within 4.769 AU of the Sun at perihelion.

A long-period comet falling in from the Oort Cloud, where it spent billions of years in the deep freeze before something nudged it loose.

How to see it

Like any astronomical target, C/2005 H1 (LINEAR) is best seen from a dark site away from city lights, and when it is above the horizon depends on your latitude and the time of year. Because it moves against the background stars, the live position panel on this page tracks where it is right now. The visibility panel above works out tonight's viewing window for your saved location.

Why C/2005 H1 (LINEAR) is a common comet

C/2005 H1 (LINEAR) scores 18 points on Spacedle's rarity scale, which places it in the common tier. Another 4 points would lift it into a rarer tier.

That score comes from 3 science badges — Comet, Has a proper name and Steeply tilted orbit (i > 40°) — each earned for a real, measurable property of the object. Rarity on Spacedle is never random: the more remarkable an object's astrophysics, the more badges it collects, the higher it scores, and the rarer it ranks.