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Positions of STEREO A and B for 9-Jan-2026 13:00 UT

This figure plots the current positions of the STEREO Ahead (red) and Behind
(blue) spacecraft relative to the Sun (yellow) and Earth (green). The dotted
lines show the angular displacement from the Sun. Units are in A.U.
When the two spacecraft are close to Earth, an expanded view of the region
around Earth will appear on the right, in the same orientation as the
Sun-centered view.
Other resources:
STEREO-B Earth STEREO-A Parker SP Solar Orbiter BepiColombo
Heliocentric distance (AU) 1.028006 0.983410 0.964918 0.658532 0.808537 0.451660
Semidiameter (arcsec) 933.485 975.817 994.518 1457.222 1186.869 2124.671
HCI longitude 333.122 32.935 84.107 239.429 40.942 206.068
HCI latitude 3.467 -3.961 -7.315 3.347 0.854 -2.415
Carrington longitude 126.722 186.536 237.707 33.029 194.542 359.669
Carrington rotation number 2306.648 2306.482 2306.340 2306.908 2306.460 2306.001
Heliographic (HEEQ) longitude -59.814 -0.000 51.171 -153.507 8.007 173.133
Heliographic (HEEQ) latitude 3.467 -3.961 -7.315 3.347 0.854 -2.415
HAE longitude 48.682 108.912 159.921 315.209 116.398 281.378
Earth Ecliptic (HEE) longitude -60.230 -0.000 51.009 -153.703 7.487 172.466
Earth Ecliptic (HEE) latitude 0.176 0.000 -0.101 -2.901 5.597 -5.583
Roll from ecliptic north 0.103 0.078
Roll from solar north 6.567 0.821
Light travel time to Earth (min) 8.400 6.979 13.309 1.890 11.902
Separation angle with Earth 60.230 51.009 153.554 9.338 170.632
Separation angle A with B 111.239
Carrington rotation 2306 runs from 2025-12-27 08:54 (DOY 361.37) to
2026-01-23 16:59 (DOY 23.71), as seen from Earth.
Last Revised: Friday, 09-Jan-2026 13:01:10 UTC
Responsible NASA Official: ![[email address: Therese.A.Kucera<at>nasa<dot>gov]](/img/kucera_email1.jpg)
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