HOYS Citizen Science2024-02-29T15:10:23+00:00


The HOYS citizen science project works with amateur astronomers on long-term photometric monitoring of young stellar clusters to find outbursting and other interesting objects for detailed follow up as well as the study of star and planet formation processes. Watch our short INTRODUCTION VIDEO.


The database is ONLINE (for data submission).


The project aims to observe nearby young clusters and star forming regions visible from the northern hemisphere to study their variable young stars. The target list currently contains 9 young clusters visible in the winter, 9 targets for the summer as well as 7 additional variable objects of interest.

We rely on amateur astronomers to use their imaging skills and equipment to monitor these target areas as often as possible in all available optical filters.

IC5070 Pelican

IC5070 Pelican Nebula, HOYS target 118

We are again a Global Sky Partner of Las Cumbres Observatory


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Lightcurve of the week 265

6 February 2024|

Pat Devine tells us how to automate the preparation of Seestar files ready for upload to the HOYS server, including python scripts.

Lightcurve of the week 264

1 February 2024|

This week the 8th paper in our series "A survey for variable young stars with small telescopes:" has been accepted for publication. You can find the link to the [...]

Lightcurve of the week 263

25 January 2024|

This week we look at a figure from an upcoming paper. In that paper we try to characterise the sample of young stars in the HOYS clusters which are [...]

Lightcurve of the week 262

17 January 2024|

In response to the large numbers of smart-scopes purchased recently, HOYS participant Mark Phillips describes how they can be used for the HOYS project.

Lightcurve of the week 261

11 January 2024|

We would like to dedicate this week's post to Roger Pickard, who sadly passed away at the end of last year. He was one of our first contributors of [...]

Lightcurve of the week 259

28 December 2023|

As promised a few weeks ago, here is the full light curve of the eruptive Be-star Gaia19eyy that has now been added to the data base since it re-opened. [...]

Lightcurve of the week 258

19 December 2023|

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Lightcurve of the week 257

14 December 2023|

Last week's post was about the erupting Be-type star Gaia19eyy. As discussed, we published our detailed analysis of this object in the fifth paper in our series, entitled: "A [...]

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