BAA Logo British Astronomical Association
Supporting amateur astronomers since 1890		 Spectrum of AC Her by Hugh Allen Home Login
Help Objects

Observation Summary for X Per

X Per: X-ray Binary Star
Total Number of Spectra:136
First Spectrum:JD 2458383.501500\22 Sep 2018 00:02:09.600000 UT
Latest Spectrum:JD 2461014.381059\4 Dec 2025 21:08:43.497600 UT

Back to Basic Summary

Summary by Observer

Observer IdObserver NameNumber of SpectraFirst Spectrum JD / UTLatest Spectrum JD / UT
ASGA Stiewing82458885.796600
6 Feb 2020 07:07:06.240000		2459267.690200
22 Feb 2021 04:33:53.280000
RLER Leadbeater602458383.501500
22 Sep 2018 00:02:09.600000		2460996.416464
16 Nov 2025 21:59:42.489600
OGDO Garde22458391.452900
29 Sep 2018 22:52:10.560000		2458396.463200
4 Oct 2018 23:07:00.480000
KGYK Gurney102458392.577600
1 Oct 2018 01:51:44.640000		2458871.386900
22 Jan 2020 21:17:08.160000
PBIP Berardi22458411.438600
19 Oct 2018 22:31:35.040000		2458432.396200
9 Nov 2018 21:30:31.680000
PSOP Somogyi52458416.481300
24 Oct 2018 23:33:04.320000		2458860.498500
11 Jan 2020 23:57:50.400000
HALH Allen82458411.435069
19 Oct 2018 22:26:29.961600		2460990.373611
10 Nov 2025 20:57:59.990400
JGFJ Guarro Fló242458413.474100
21 Oct 2018 23:22:42.240000		2459619.432600
8 Feb 2022 22:22:56.640000
SBLS Charbonnel62458396.577800
5 Oct 2018 01:52:01.920000		2458410.567000
19 Oct 2018 01:36:28.800000
TLRT Lester12458731.841600
5 Sep 2019 08:11:54.240000		2458731.841600
5 Sep 2019 08:11:54.240000
BRIER Brown12460693.745243
18 Jan 2025 05:53:08.995200		2460693.745243
18 Jan 2025 05:53:08.995200
FJQJ Foster12460940.979155
22 Sep 2025 11:29:58.992000		2460940.979155
22 Sep 2025 11:29:58.992000
DDBD Boyd42461003.332060
23 Nov 2025 19:58:09.984000		2461014.381059
4 Dec 2025 21:08:43.497600
CDZD Cejudo32461003.683183
24 Nov 2025 04:23:47.011200		2461008.524954
29 Nov 2025 00:35:56.025600
TROT Rodda12458398.471000
6 Oct 2018 23:18:14.400000		2458398.471000
6 Oct 2018 23:18:14.400000