HARVARD 10 & COLLINDER 299

OPEN CLUSTERS IN NORMA (THE SQUARE RULE)

(Image centered at: ra 19 h:07 m / dec + 04º 13')

October - 2024, Home Backyard in Martinez, Buenos Aires, Argentina

DATA

TYPE: OPEN CLUSTERS

APPARENT DIAMETER: HAVARD 10: 30 arc minutes: COLLINDER 299: 20 arc minutes

APPARENT MAGNITUDE (V): COLLINDER 299: 6.9   

DISTANCE: 4300 light years

IMAGE INFORMATION

INSTRUMENT: 6" ORION OPTICS UK (Ultra Grade Optics) w/Sky Watcher Coma Corrector (0.9x) working at at f4.5

CAMERA: QHY 183 MONO

MOUNT: VIXEN GDPX, OAG with QHY 5II Mono

FILTERS: BAADER LRGB Set

SKY CONDITIONS: urban skies - Bortle 8

EXPOSURES: LRGB (45,45,45,45)

OBJECT DESCRIPTION AND IMAGE SESSION

HARVARD 10 is a very loose and relative large open cluster located in the southern constellation of Norma a bit more of 1 degree south east from NGC 6067. To the right in the image we have an also very loose open cluster Collinder 299. This cluster is so loose that it is still very difficult to discern its members in the photograph. Both open clusters are located close to the equatorial plane of our Milky Way, therefore the sky background is crowded with stars.