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131. CCD measurements of double and multiple stars
ID:
ivo://CDS.VizieR/J/A+AS/123/487
Title:
CCD measurements of double and multiple stars
Short Name:
J/A+AS/123/487
Date:
21 Oct 2021
Publisher:
CDS
Description:
The CCD measurements for 123 double stars with ST-6 camera attached to the Zeiss 65/1055 cm Refractor of the Belgrade Observatory are communicated.
132. CCD measurements of multiple stars at ASV & NAOR
ID:
ivo://CDS.VizieR/J/AJ/156/134
Title:
CCD measurements of multiple stars at ASV & NAOR
Short Name:
J/AJ/156/134
Date:
21 Oct 2021
Publisher:
CDS
Description:
The results of classical CCD observations for 371 double or multiple stars (450 pairs) obtained at both, Serbian Astronomical Station on the mountain of Vidojevica (ASV) and Bulgarian National Astronomical Observatory at Rozhen (NAOR) are presented. At ASV the observations were performed with the 0.6 m telescope in the first half of 2016 during 11 nights, and with the newly mounted 1.4 m telescope in the second half of 2016 during 16 nights. At NAOR, the observations were performed with the 2 m telescope during four nights. In this paper, we present 477 measurements (position angle and angular separation) for these 450 pairs. Among them there are 41 pairs with published orbital or linear elements and residuals are given for them. Some pairs have measurements for several epochs. Our observed pairs have angular separations in the interval from 1.60" to 190.30", with a mean angular separation of 14.87" and a median value of 4.34". Two new pairs and linear elements for four pairs which are calculated for the first time are also presented.
133. 1995-1999 CCD observation of Saturnian satellite
ID:
ivo://CDS.VizieR/J/A+A/400/1095
Title:
1995-1999 CCD observation of Saturnian satellite
Short Name:
J/A+A/400/1095
Date:
21 Oct 2021
Publisher:
CDS
Description:
Astrometric positions of the first eight largest Saturnian satellites and the Lagrangian satellites Helene, Telesto and Calypso are presented from 493 CCD frames taken at the oppositions in 1995 through 1999. The images were obtained over 27 nights. Observed positions are compared with the calculated ones from Vienne and Duriez (1995A&A...297..588V) TASS 1.7 for the large satellites and from JPL positions for the Lagrangian satellites. The rms is about 0.12" for the former but 0.20" for Iapetus and 0.28" for Hyperion. For the Lagrangian satellites it is about 0.21" for Helene, 2.02" for Telesto and 0.60" for Calypso.
134. 1999-2000 CCD observations of inner Jovian moons
ID:
ivo://CDS.VizieR/J/A+A/383/724
Title:
1999-2000 CCD observations of inner Jovian moons
Short Name:
J/A+A/383/724
Date:
21 Oct 2021
Publisher:
CDS
Description:
The file innerjov.dat contains 236 intersatellite positions of the inner Jovian moons Thebe, Amalthea, Adrastea and Metis derived from the observations made with the 2-m Zeiss RCC telescope of Terskol Observatory (Terskol peak, Northern Caucasus, long=42.50083{deg}, lat=43.27427{deg}, h=3100m) in October-November 1999 and in November 2000. The Two-Channel Focal Reducer of the Max-Planck Institute for Aeronomy (MPAe,Germany) was used for acquisition of the images. We provide {delta}({alpha}) and {delta}({delta}) of Thebe and Amalthea with respect to the Galilean satellites, while the positions of Adrastea and Metis are referred to either the Galilean moons or to Thebe or Amalthea. Astrometric topocentric coordinates J2000.0 of the Galilean satellites were used for scale and orientation angle determination. The array scale was corrected for differential refraction and differential aberration to first-order.
135. CCD observations of Nereid
ID:
ivo://CDS.VizieR/J/A+AS/136/445
Title:
CCD observations of Nereid
Short Name:
J/A+AS/136/445
Date:
21 Oct 2021
Publisher:
CDS
Description:
229 CCD positions of Nereid taken between 1993 and 1998 are presented. Many of the observations were taken near the periapsis. Considering also the other published positions we have a good distribution of the observations on the eccentric orbit of the satellite. Using a numeric integration method we fitted all these observations in order to determine one state vector for the orbit. The observed minus calculated standard deviation for all observations is 0.23", and for our observations it is 0.16".
136. CCD observations of Phoebe in 1998-1999
ID:
ivo://CDS.VizieR/J/A+A/391/767
Title:
CCD observations of Phoebe in 1998-1999
Short Name:
J/A+A/391/767
Date:
21 Oct 2021
Publisher:
CDS
Description:
In 1998 and 1999, we started observations of the 9th satellite of Saturn. We made 163 observations using the 120cm-telescope of Observatoire de Haute-Provence, France. We used the USNO A2 catalogue (Cat. <I/252>) of stars for the astrometric reduction. With the help of observations of optical counterparts of ICRF sources, a zonal correction to the USNO A2.0 catalogue was computed and applied to the Phoebe positions. A comparison to the most recent theories was made.
137. CCD observations of saturnian satellites
ID:
ivo://CDS.VizieR/J/other/SoSyR/45.523
Title:
CCD observations of saturnian satellites
Short Name:
J/other/SoSyR/45
Date:
21 Oct 2021
Publisher:
CDS
Description:
The astrometric positions of seven saturnian satellites are presented. Positions were derived from more then 5000 CCD frames taken with 26-inch Zeiss refractor at Pulkovo from Jan 2008 to may 2009. Astrometric reduction algorithm is based on Turner's method with using UCAC2 catalog as reference one. Observed positions were compared with theoretical ones from TASS 1.7 (Viennel & Duriez, 1995A&A...297..588V). The accuracy is about 0.05 arcsec. Also positions of Saturn were obtained from observations of satellites 2-6.
138. 1989-1994 CCD observations of Triton
ID:
ivo://CDS.VizieR/J/A+AS/120/107
Title:
1989-1994 CCD observations of Triton
Short Name:
J/A+AS/120/107
Date:
21 Oct 2021
Publisher:
CDS
Description:
Astrometric positions of the Neptunian Satellite Triton are given for the opposition of Neptune for the years 1989 to 1994. These positions where measured on 433 CCD frames obtained at the Cassegrain focus of a 1.6 m reflector. They are compared with theoretical positions calculated from Jacobson et al. (1991A&A...247..565J). The observed minus calculated residuals referred to Neptune have standard deviations of the order of 0.11".
139. CCD observations of visual double stars
ID:
ivo://CDS.VizieR/J/AN/341/762
Title:
CCD observations of visual double stars
Short Name:
J/AN/341/762
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present 18365 astrometric observations of 290 visual binaries obtained with the 26-inch refractor of Pulkovo Observatory during 2014-2019. The separation between components is from 1.3" to 37" with a median value of 4.8". For a single observation, the mean separation error is 0.013", and the mean position angle error is 0.44{deg}/rho, where rho is an angular distance in arcseconds. We compare the observations of sample stars with the data from the Gaia DR2 catalog and the results of the ground-based observations performed with other telescopes.
140. CCD observations of visual double stars
ID:
ivo://CDS.VizieR/J/PAZh/36/365
Title:
CCD observations of visual double stars
Short Name:
J/PAZh/36/365
Date:
21 Oct 2021
Publisher:
CDS
Description:
We present the results of 3632 astrometric CCD-measurements of 314 visual double stars performed with the 26-inch refractor of the Pulkovo observatory in 2003-2007. Angular separations (rho) and position angles (theta) are provided. Mean values of standard errors are 0.009" in rho and 0.40(deg)/rho in theta, where rho is the separation in arcseconds.

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