Basic Parameters of IC 4756 (WEBDA):
- Right Ascension (2000): 18 39 00
- Declination (2000): +05 27 00
- Galactic longitude: 36.381
- Galactic latitude: 5.242
- Distance [pc]: 484
- Reddening [mag]: 0.192
- Distance modulus [mag]: 9.02
- Log Age: 8.699
- Metallicity: -0.06
Delta Scuti stars
- HD172189 (IC 4756 HER 205)
- Sp. Type: A2
- V [mag]: 8.73
- References:
- Costa J.E.S., Michel E., Pena J., et al. 2007, A&A, 468, 637: Pulsational frequencies of the eclipsing Delta Scuti star HD 172189. Results of the STEPHI XIII campaign.
- Creevey O.L., Uytterhoeven K., Martín-Ruiz S., 2009, A&A, 507, 901: HD 172189: another step in furnishing one of the best laboratories known for asteroseismic studies.
