|Right ascension||18 h 21 m 36 s to 18 h 59 m 10 s|
|declination||−15 ° 56 ′ 37 ″ to −3 ° 50 ′ 01 ″|
|Completely visible||74.6 ° N to 90 ° S|
|Observation time for Central Europe||summer|
|Number of stars brighter than 3 mag||0|
|Brightest star (size)||α Scuti (3.85)|
clockwise from north )
The constellation shield as it can be seen with the naked eye
The shield is a small, inconspicuous constellation south of the eagle (Aquila). It lies in the star-rich Milky Way , so there are several foggy objects in the shield, such as two open star clusters and a globular cluster .
The constellation was first listed in 1690 in the work Firmamentum Sobiescianum by Johannes Hevelius and is dedicated to the Polish King Jan III. Dedicated to Sobieski (1629–1696), who liberated the city of Vienna from the Turkish besiegers in 1683 at the Battle of Kahlenberg . It symbolizes the shield that the king wore in battle and so the original name was Scutum Sobiescianum ("Shield of Sobieski").
Of several proposed constellations that referred to people of modern times, apart from the shield, only the telescope , with which Lacaille honored the inventors of the telescope, has found its way into the list of 88 modernly recognized constellations.
|B.||Designations||size||Distance / Lj||Spectral class|
|α||3.85 m||174||K2 III|
|β||4.22 m||690||G5 II.|
|ζ||4.68 m||191||K0 III|
|γ||4.70 m||292||A1 IV / V|
|δ||4.60 to 4.79 m||approx. 200||F2 IIIp|
|η||4.83 m||207||K1 III|
|ε||4.88 m||523||G8 II|
|Struve 2325||5.72 m|
|R.||4.4 to 8.2 m||2500||G7 Ib|
|δ||4.72v / 9.2 / 12.2|
|Struve 2325||5.8 / 9.1|
|δ||4.60 to 4.79 m||4.67 hours||Short-periodically variable|
|R.||4.4 to 8.2 m||140 to 146 days||RV Tauri star|
The main star of the system δ Scuti is the namesake of a group of short -period pulsation - variable stars , the Delta Scuti stars . Its brightness changes over a period of 4 hours and 40 minutes from 4.60 to 4.79 m . The star has about twice the mass and 15 times the luminosity of our sun. Spectroscopic studies show that its shell is rich in heavy elements.
R Scuti is a semi-regular pulsation-variable star of the RV-Tauri type, 2500 light-years away . In these stars, shallow and deep brightness minima alternate.
|11||6705||5.8 m||Open star cluster||Wild Duck Nebula|
|26th||6694||8.0 m||Open star cluster|
|6712||8.5 m||Globular clusters|
The M 11 , 5,700 light years away, is one of the most prominent open star clusters in the night sky. It can already be seen in prism binoculars , and over 400 stars can be seen in a medium-sized telescope . Since its shape is reminiscent of a flying duck, it is also called "Wild Duck Nebula" (wild duck nebula).
M 26 is an open star cluster 5,000 light years away. It is less impressive than M 11. 15 to 20 stars are visible in the telescope.