1. Yellow Group: Jeff Bidler, Joshua Hagee, Paul McGuire,
Rosa McGuire, Leslie Montes, Nicole Richardson, Arturo
Rodriguez, and Mark Brewer
Observations of
Omicron 1 Cygni
(SFTA 50AD)

2. Overview
● Omicron 1 Cygni has only been measured 35 times since it was
discovered in 1800, averaging about one measurement every 6
years, and it was last observed in 2008, which we are thinking
might have been an outlier data point due to our data matching
to the 1800 measurements more than the 2008 data.
● Omicron 1 Cygni consists of Omicron 1 and 30 Cygni, an
orange super giant and blue-white star, respectively and is in
the Cygnus (Swan) constellation.
● With an average drift time of 57.51 seconds, we found the
separation to be 340.9 arcseconds, and the position angle to be
324.05 degrees.

3. Procedures & Equipment

4. Procedures & Equipment
Z = 15.0411(Tavg.)cos(dec) / D

5. Procedures & Equipment

6. Procedures & Equipment

7. Procedures & Equipment
Theta = tan -1 ∆y/∆x
C = sqr(∆x2+∆y2)
Z = 206264.806(pixel size) / focal length

8. ● 17 July 2015
● @ Lewis Center for Educational Research
Observations & Analysis

9. Observations & Analysis
Units # Obs. Std. Dev. Mean Std. Mean
Err.
Drift Time seconds 10 1 57.5 0.3
Separation arcseconds 6 0.5 340.9 0.2
Position Angle degrees 10 1.1 324.1 0.34
Table 1: Student Measurements

10. Observations & Analysis
Historical Observations Comparison to Present Study
Epoch Position
angle
(degrees)
Separation
(arc seconds)
Position
angle
difference
(degrees)
Separation
difference
(arc
seconds)
Position
angle
percentage
difference
Separation
percentage
difference
1800 325 338.0 0.9 2.9 0.3 0.9
2008 325 333.8 0.9 7.1 0.3 2.1
Table 2: Student observations compared to
WDS Data

11. Thank you!