Use of cookies

Cookies help us to provide our services. By using our website you agree that we can use cookies. Read more about our Privacy Policy and visit the following link: Privacy Policy

OK

Navigation and service

International Earth Rotation and Reference Systems Service

What is the path of the defined CEO?

The CEO moves 66 mas in ICRS right ascension over the next 100 years; its ICRS coordinates at J2100 are RA = 00h 00m 00s.0046, Dec = -00° 33' 25".073 (See the Table).

Table: How far apart the CEO and the equinox are over two centuries (RA in h, min, s; Dec in °, ', ")

Celestial Ephemeris OriginTrue equinox of date
YearRA (ICRS)Dec (ICRS)RA (ICRS)Dec (ICRS)
1900.0
1910.0
1920.0
1930.0
1940.0
1950.0
1960.0
1970.0
1980.0
1990.0
2000.0
2010.0
2020.0
2030.0
2040.0
2050.0
2060.0
2070.0
2080.0
2090.0
2100.0
0 00 00.0047
0 00 00.0032
0 00 00.0024
0 00 00.0014
0 00 00.0010
0 00 00.0004
0 00 00.0002
0 00 00.0001
0 00 00.0001
0 00 00.0001
0 00 00.0001
0 00 00.0002
0 00 00.0002
0 00 00.0001
0 00 00.0004
0 00 00.0003
0 00 00.0010
0 00 00.0014
0 00 00.0023
0 00 00.0033
0 00 00.0046
+ 0 33 17.516
+ 0 30 09.988
+ 0 26 37.886
+ 0 23 27.188
+ 0 19 59.335
+ 0 16 43.606
+ 0 13 21.534
+ 0 09 59.567
+ 0 06 43.932
+ 0 03 15.743
+ 0 00 05.558
- 0 03 26.947
- 0 06 34.227
- 0 10 08.129
- 0 13 15.423
- 0 16 47.925
- 0 19 57.777
- 0 23 26.414
- 0 26 41.163
- 0 30 03.861
- 0 33 25.073
0 05 06.3320
0 04 37.5683
0 04 05.0713
0 03 35.8032
0 03 03.9627
0 02 33.9177
0 02 02.9559
0 01 31.9579
0 01 01.9676
0 00 30.0215
0 00 00.8512
0 00 31.7558
0 01 00.4900
0 01 33.3202
0 02 02.0570
0 02 34.6922
0 03 03.8137
0 03 35.8834
0 04 05.7455
0 04 36.9319
0 05 07.7813
+ 0 33 17.566
+ 0 30 09.920
+ 0 26 37.996
+ 0 23 27.086
+ 0 19 59.453
+ 0 16 43.513
+ 0 13 21.622
+ 0 09 59.511
+ 0 06 43.971
+ 0 03 15.729
+ 0 00 05.558
- 0 03 26.941
- 0 06 34.234
- 0 10 08.138
- 0 13 15.402
- 0 16 47.985
- 0 19 57.698
- 0 23 26.547
- 0 26 41.016
- 0 30 04.060
- 0 33 24.882