position expressed in terms of the standard reference frame of J2000, and it is often then this J2000 position which is shared with others. On the other hand...

equinox and of the epoch. The currently used standard equinox and epoch is J2000.0, which is January 1, 2000 at 12:00 TT. The prefix "J" indicates that it...

The Pontiac Sunbird (also known as the Pontiac J2000 and Pontiac 2000) is a model line that was manufactured and marketed by Pontiac from the 1976 to...

27° 24′ in the then-used B1950 epoch;[citation needed] in the currently-used J2000 epoch, after precession is taken into account, its position is RA 12h 51m...

once around the ecliptic. It equals 365.256363004 ephemeris days for the J2000.0 epoch. The sidereal year differs from the solar year, "the period of time...

International Earth Rotation and Reference Systems Service. Examples include: J2000: One commonly used ECI frame is defined with the Earth's Mean Equator and...

acceleration in these cars was quite sluggish, with a test 1982 Pontiac J2000 accelerating from 0–60 mph (0–97 km/h) in 16.3 seconds, with a 1⁄4 mile...

average duration is 365.256363004 days (365 d 6 h 9 min 9.76 s) (at the epoch J2000.0 = January 1, 2000, 12:00:00 TT). Today the mean tropical year is defined...

right Designations Adjectives Martian Symbol Orbital characteristics Epoch J2000 Aphelion 249261000 km (154884000 mi; 1.66621 AU) Perihelion 206650000 km...

17h 45m 40.0409s, −29° 00′ 28.118″ (J2000). Rounded to the same number of digits as the table, 17h 45.7m, −29.01° (J2000), there is an offset of about 0.07°...

secularly and periodically. The quantities given are the values at the instant J2000.0 of the secular variation, ignoring all periodic variations. aphelion =...

Cynthian (poetic) Moonly (poetic) Symbol or Orbital characteristics Epoch J2000 Perigee 362600 km (356400–370400 km) Apogee 405400 km (404000–406700 km)...

standard epoch is J2000.0, which is January 1, 2000 at 12:00 TT. The prefix "J" indicates that it is a Julian epoch. Prior to J2000.0, astronomers used...

each before or after J2000.0. For example, the future epoch J2100.0 will be exactly 36,525 days (one Julian century) from J2000.0 at 12:00 TT on January...

Catalogue Entry, Qxxxx±yy using B1950 coordinates, or QSO Jxxxx±yyyy using J2000 coordinates. They may also use the prefix QSR. There are currently no quasars...

Jupiter Adjectives Jovian /ˈdʒoʊviən/ Symbol Orbital characteristics Epoch J2000 Aphelion 5.4570 AU (816.363 million km) Perihelion 4.9506 AU (740.595 million km)...

(linear) approximation of the secular change is provided. Valid for the epoch J2000.0 (1 January 2000 12:00 TT): Note: In this table, time is expressed in Ephemeris...

or synodic month, is the period from one new moon to the next. At the J2000.0 epoch, the average length of a lunation is 29.53059 days (or 29 days,...

for the north pole of the ecliptic. (Both pairs of coordinates are for J2000 epoch.) The result of the calculation is 60.19°. Lurie, John C.; Henry,...

to default.) Results are instantaneous osculating values at the precise J2000 epoch. Simon, J.L.; Bretagnon, P.; Chapront, J.; Chapront-Touzé, M.; Francou...

(IMCCE). They refer to the standard equinox J2000, the barycenter of the Solar System, and the epoch J2000. Surface area derived from the radius r: 4 π...

three most commonly used are: Mean equinox of a standard epoch (usually J2000.0, but may include B1950.0, B1900.0, etc.) is a fixed standard direction...

defaulted to.) Results are instantaneous osculating values at the precise J2000 epoch. Williams, David R. (November 25, 2020). "Mercury Fact Sheet". NASA...

(mostly astronomical), (mostly astrological) Orbital characteristics Epoch J2000 Aphelion 20.0965 AU (3.00639 billion km) Perihelion 18.2861 AU (2.73556 billion km)...

now in Pisces; when it is at the September equinox, it is in Virgo (as of J2000). Along its yearly path through the zodiac, the Sun meets the celestial...

with respect to this frame, toward 10.5 right ascension, −24° declination (J2000 epoch, near the center of Hydra). This motion is observed by satellites...

WISE J2000+3629 (full designation is WISE J200050.19+362950.1) in astronomy is a nearby brown dwarf with a temperature less than 700 Kelvin (spectral...

/səˈtɜːrniən/, Cronian / Kronian /ˈkroʊniən/ Symbol Orbital characteristics Epoch J2000.0 Aphelion 1,514.50 million km (10.1238 AU) Perihelion 1,352.55 million km...

secularly and periodically. The quantities given are the values at the instant J2000.0 of the secular variation, ignoring all periodic variations. aphelion =...

8–9 October 1604 Right ascension 17h 30m 42s Declination −21° 29′ Epoch J2000 Galactic coordinates G4.5+6.8 Distance Less than 20,000 light-years (6.1 kpc)...