HOYS Citizen Science2021-01-18T21:57:11+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 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, 8 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 now a Global Sky Partner of Las Cumbres Observatory.
To get involved and apply FIND OUT MORE »

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HOYS-LCO Project Update – New Target

17 January 2021|

The HOYS-LCO project is progressing well. In total we have had now 35 people applying to participate. Over the last 6months we have taken 60 sets of 3x2min B,V,R images [...]

Lightcurve of the week 105

13 January 2021|

This week we look at V591Ori. This is another of the young stars situated in the L1641N cloud in Orion. At a distance of 293pc, this objects is relatively nearby, [...]

Lightcurve of the week 104

6 January 2021|

This week we look at V1144Ori. It is situated in what used to be one of our least observed target regions - L1641N in Orion. It is situated just South [...]

Lightcurve of the week 103

1 January 2021|

Happy New Year everyone! We start 2021 with a look at the light curve of AA Ori. This is a know variable star in the southern outskirts of the Orion [...]

Lightcurve of the week 102

24 December 2020|

Happy Christmas everyone! This weeks light curve is of the the star GP Mon in the Christmas Tree Cluster NGC2264. It is a know variable star of Orion Type at [...]

Lightcurve of the week 101

16 December 2020|

This weeks light curve is of the star T Ori in the outskirts of the Orion Nebula M42. It is a known so called Herbig AeBe star at a Gaia [...]

Lightcurve of the week 99

2 December 2020|

This weeks light curve of the week features the emission line star EM* AS 405. It is situated in the area of the target field Berkeley 86 in Cygnus. The [...]

Lightcurve of the week 98

24 November 2020|

This week we focus on a star in one of the least often observed  HOYS target fields. The light curve shown in the above image is of the star V1787Ori. [...]

Lightcurve of the week 97

19 November 2020|

This week we have a look at the star V982Cep. It is situated in the field of NGC7129. With a most likely distance from Gaia of 734pc, the star is [...]

Lightcurve of the week 96

11 November 2020|

This week we have a detailed look at the light curve of V505Ori. This is one of the three targets in the Sigma Ori field observed by HOYS, which we [...]

Lightcurve of the week 95:

5 November 2020|

We are "celebrating" the start of UK lock-down Nr.2 (at least there are lots of fireworks outside 😊), so let's look back at the light curve of the week Nr. [...]

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