Search Data

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Search Data

The AAVSO International Database is a repository of variable star observations contributed by amateur and professional astronomers worldwide. Use the form below to search for observations of specific stars or by specific observers.

Target(s)

Enter list of star names, comma separated.

Start Date

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End Date

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Filters

Observation Types

Observer

Separate multiple observers with commas.

Campaign

Campaign overrides targets and dates.

Found 523 records

#	Target	Observer	Julian Date	UTC Date	Magnitude	Uncertainty	Band	Type
1	XZ Tau	VMAG	2458423.4255	2018-10-31 22:12	10.574	0.03	Cousins I	CCD
2	HL Tau	DEY	2458422.6260	2018-10-31 03:01	15.931	0.020	Johnson B	CCD
3	XZ Tau	DEY	2458422.6260	2018-10-31 03:01	14.607	0.007	Johnson B	CCD
4	XZ Tau	DEY	2458422.6210	2018-10-31 02:54	13.467	0.003	Johnson V	CCD
5	HL Tau	DEY	2458422.6210	2018-10-31 02:54	14.667	0.007	Johnson V	CCD
6	HL Tau	SDM	2458422.6042	2018-10-31 02:30	15.948	0.059	Johnson B	CCD
7	XZ Tau	SDM	2458422.6042	2018-10-31 02:30	14.727	0.055	Johnson B	CCD
8	XZ Tau	SDM	2458422.6000	2018-10-31 02:23	13.479	0.041	Johnson V	CCD
9	HL Tau	SDM	2458422.6000	2018-10-31 02:23	14.624	0.047	Johnson V	CCD
10	HL Tau	YBA	2458422.1752	2018-10-30 16:12	12.560	0.111	Cousins I	CCD
11	XZ Tau	YBA	2458422.1752	2018-10-30 16:12	10.867	0.109	Cousins I	CCD
12	XZ Tau	YBA	2458422.1736	2018-10-30 16:09	12.105	0.056	Cousins R	CCD
13	HL Tau	YBA	2458422.1736	2018-10-30 16:09	13.543	0.057	Cousins R	CCD
14	XZ Tau	YBA	2458422.1720	2018-10-30 16:07	13.372	0.046	Johnson V	CCD
15	HL Tau	YBA	2458422.1720	2018-10-30 16:07	14.634	0.054	Johnson V	CCD
16	XZ Tau	YBA	2458422.1660	2018-10-30 15:58	14.575	0.227	Johnson B	CCD
17	HL Tau	YBA	2458422.1660	2018-10-30 15:58	15.702	0.242	Johnson B	CCD
18	XZ Tau	HBB	2458421.9124	2018-10-30 09:53	13.310	0.007	Johnson V	CCD
19	HL Tau	HBB	2458421.9124	2018-10-30 09:53	14.618	0.020	Johnson V	CCD
20	HL Tau	DEY	2458421.6280	2018-10-30 03:04	15.924	0.028	Johnson B	CCD
21	XZ Tau	DEY	2458421.6280	2018-10-30 03:04	14.488	0.009	Johnson B	CCD
22	HL Tau	DEY	2458421.6200	2018-10-30 02:52	14.675	0.007	Johnson V	CCD
23	XZ Tau	DEY	2458421.6200	2018-10-30 02:52	13.411	0.003	Johnson V	CCD