# 523 Ada

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**523 Ada** is a [minor planet](/source/Minor_planet) orbiting the [Sun](/source/Sun). It was discovered January 29, 1904, by American astronomer [Raymond S. Dugan](/source/Raymond_Smith_Dugan) at Heidelberg, Germany and was named after his friend Ada Helme. CCD images collected during the fall of 2004 at Oakley Observatory in [Terre Haute, Indiana](/source/Terre_Haute,_Indiana), were used to generate a [lightcurve](/source/Lightcurve) for the object, showing a rotation period of 10.03 ± 0.01 hours.[2]

## References

1. ["JPL Small-Body Database Browser: 523 Ada (1904 ND)"](https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=523). [Jet Propulsion Laboratory](/source/Jet_Propulsion_Laboratory). Retrieved 8 May 2016.

1. Lecrone, Crystal; Mills, George; Ditteon, Richard (September 2005), "Lightcurves and periods for asteroids 463 Lola, 523 Ada, 544 Jetta, 642 Clara, 883 Matterania, 6475 Refugium", *The Minor Planet Bulletin*. **32** (3): 62–64, [Bibcode:2005MPBu...32...62L](https://ui.adsabs.harvard.edu/abs/2005MPBu...32...62L)

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