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Common neo 21 EP

Ivar

Position computed live · sbdb

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Live ephemeris

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Score breakdown

· 4 badges
21 pts · Common
Common 22 pts → Uncommon
  • Has a proper name +8
  • Near-Earth object +5
  • Amor: shadows Earth's orbit from outside +4
  • Stony asteroid +4
Total score 21

1 more point to reach Uncommon.

Badges

  • Near-Earth object · +5
  • Has a proper name · +8
  • Amor: shadows Earth's orbit from outside · +4
  • Stony asteroid · +4

Trivia

What it actually is

  • Its orbit family. An Amor-class object. It approaches Earth's orbit from outside without ever crossing it — named for the asteroid Amor, which swept past at 16 million km in 1932.
  • Closest approach. At its nearest it comes within 1.12 AU of the Sun — inside the orbit of Mars.
  • One lap. A single orbit around the Sun takes it about 2.5 years.
  • How far it roams. Its orbit swings between 1.12 and 2.6 AU from the Sun.

Sense of scale

  • Sense of scale. In everyday terms it is roughly 1× the height of Mount Everest.

By the numbers

  • Size. Roughly 9.1 km across.

What's in a name

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

Properties

albedo
0.15
aphelion au
2.6
designation
1627
diameter km
9.12
eccentricity
0.3973
full name
1627 Ivar (1929 SH)
h mag
12.79
inclination
8.46
mean motion deg day
0.3876
moid au
0.11
name
Ivar
named
yes
orbit class
AMO
perihelion au
1.123
rotation period h
4.795
semi major au
1.863
spec taxonomy
S
spect
S

About Ivar

Ivar is a common neo. It has spectral type S and swings within 1.123 AU of the Sun at perihelion.

An Amor-class object. It approaches Earth's orbit from outside without ever crossing it — named for the asteroid Amor, which swept past at 16 million km in 1932.

How to see it

Like any astronomical target, Ivar 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 Ivar is a common neo

Ivar scores 21 points on Spacedle's rarity scale, which places it in the common tier. Another 1 point would lift it into a rarer tier.

That score comes from 4 science badges — Near-Earth object, Has a proper name, Amor: shadows Earth's orbit from outside and Stony asteroid — 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.