Table 3
Details of the occulted star and other occultation related information.
| Designation | Gaia DR2 4352760586390566400 |
|---|---|
| Coordinates DR2(a) | α = 16h41m06.4260s, δ = −06°43′34″/5756 |
| Star position errors(b) | errRA = 0.1474 mas, errDec = 0.1143 mas |
| Proper motions & Parallax(c) | pmRA = −4.506 ± 0.090 mas yr−1, pmDec = −14.340 ± 0.055 mas yr−1, Plx =1.5717 ± 0.0478 mas |
| Magnitudes(d) | B = 12.296, V = 11.751, R = 11.380, J = 10.541, H = 10.384, K= 10.294, G= 11.538 |
| Star Diameter(e) | ~0.0342 ± 0.0014 mas (~0.70 ± 0.03 km at Huya’s distance) |
| Fresnel(f) | 1.13km |
| Exposure time effect(g) | 1.61 km |
| Velocity(h) | 8.07 km s−1 |
Notes. (a) Gaia DR2 coordinates propagated to the occultation epoch (2019.211) using the proper motions and parallax. (b) errRA and errDEc are the errors in RA and Dec from the Gaia DR2 catalog propagated to the occultation epoch using the formalism by Butkevich & Lindegren (2014). This formalism has been applied using the SORA tool (Gomes-Júnior et al. 2022). (c) pmRA and pmDec are the proper motions in RA and Dec and respective errors, Plx is the absolute stellar parallax with error. (d) B, V, R, J, H and K from the NOMAD catalog (Zacharias et al. 2004). G from the Gaia DR2 catalog (Gaia Collaboration 2018). (e) Size estimated using V and K magnitudes and the van Belle (1999) equation for a main sequence star. (f) Fresnel diffraction effect: 
, with d = 28.3500 AU at the occultation moment and λ = 600 nm. (g)Smallest exposure time from the positive detections multiplied by the event shadow velocity. (h) Velocity of Huya with respect to the star as seen from Earth.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.